21479741920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2887}}^1$

素因数の和:3002

約数の個数: 288

約数和(自身を含む): 64464942528

約数和(自身を除く): 42985200608

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 73, 80, 91, 98, 104, 112, 130, 140, 146, 160, 182, 196, 208, 224, 245, 260, 280, 292, 364, 365, 392, 416, 455, 490, 511, 520, 560, 584, 637, 728, 730, 784, 910, 949, 980, 1022, 1040, 1120, 1168, 1274, 1456, 1460, 1568, 1820, 1898, 1960, 2044, 2080, 2336, 2548, 2555, 2887, 2912, 2920, 3185, 3577, 3640, 3796, 3920, 4088, 4745, 5096, 5110, 5774, 5840, 6370, 6643, 7154, 7280, 7592, 7840, 8176, 9490, 10192, 10220, 11548, 11680, 12740, 13286, 14308, 14435, 14560, 15184, 16352, 17885, 18980, 20209, 20384, 20440, 23096, 25480, 26572, 28616, 28870, 30368, 33215, 35770, 37531, 37960, 40418, 40880, 46192, 46501, 50960, 53144, 57232, 57740, 66430, 71540, 75062, 75920, 80836, 81760, 92384, 93002, 101045, 101920, 106288, 114464, 115480, 132860, 141463, 143080, 150124, 151840, 161672, 186004, 187655, 202090, 210751, 212576, 230960, 232505, 262717, 265720, 282926, 286160, 300248, 323344, 372008, 375310, 404180, 421502, 461920, 465010, 525434, 531440, 565852, 572320, 600496, 646688, 707315, 744016, 750620, 808360, 843004, 930020, 1050868, 1053755, 1062880, 1131704, 1200992, 1313585, 1414630, 1475257, 1488032, 1501240, 1616720, 1686008, 1839019, 1860040, 2101736, 2107510, 2263408, 2627170, 2739763, 2829260, 2950514, 3002480, 3233440, 3372016, 3678038, 3720080, 4203472, 4215020, 4526816, 5254340, 5479526, 5658520, 5901028, 6004960, 6744032, 7356076, 7376285, 7440160, 8406944, 8430040, 9195095, 10326799, 10508680, 10959052, 11317040, 11802056, 13698815, 14712152, 14752570, 16860080, 18390190, 19178341, 20653598, 21017360, 21918104, 22634080, 23604112, 27397630, 29424304, 29505140, 33720160, 36780380, 38356682, 41307196, 42034720, 43836208, 47208224, 51633995, 54795260, 58848608, 59010280, 73560760, 76713364, 82614392, 87672416, 95891705, 103267990, 109590520, 118020560, 134248387, 147121520, 153426728, 165228784, 191783410, 206535980, 219181040, 236041120, 268496774, 294243040, 306853456, 330457568, 383566820, 413071960, 438362080, 536993548, 613706912, 671241935, 767133640, 826143920, 1073987096, 1342483870, 1534267280, 1652287840, 2147974192, 2684967740, 3068534560, 4295948384, 5369935480, 10739870960, 21479741920]

約数ペア:

[(1, 21479741920), (2, 10739870960), (4, 5369935480), (5, 4295948384), (7, 3068534560), (8, 2684967740), (10, 2147974192), (13, 1652287840), (14, 1534267280), (16, 1342483870), (20, 1073987096), (26, 826143920), (28, 767133640), (32, 671241935), (35, 613706912), (40, 536993548), (49, 438362080), (52, 413071960), (56, 383566820), (65, 330457568), (70, 306853456), (73, 294243040), (80, 268496774), (91, 236041120), (98, 219181040), (104, 206535980), (112, 191783410), (130, 165228784), (140, 153426728), (146, 147121520), (160, 134248387), (182, 118020560), (196, 109590520), (208, 103267990), (224, 95891705), (245, 87672416), (260, 82614392), (280, 76713364), (292, 73560760), (364, 59010280), (365, 58848608), (392, 54795260), (416, 51633995), (455, 47208224), (490, 43836208), (511, 42034720), (520, 41307196), (560, 38356682), (584, 36780380), (637, 33720160), (728, 29505140), (730, 29424304), (784, 27397630), (910, 23604112), (949, 22634080), (980, 21918104), (1022, 21017360), (1040, 20653598), (1120, 19178341), (1168, 18390190), (1274, 16860080), (1456, 14752570), (1460, 14712152), (1568, 13698815), (1820, 11802056), (1898, 11317040), (1960, 10959052), (2044, 10508680), (2080, 10326799), (2336, 9195095), (2548, 8430040), (2555, 8406944), (2887, 7440160), (2912, 7376285), (2920, 7356076), (3185, 6744032), (3577, 6004960), (3640, 5901028), (3796, 5658520), (3920, 5479526), (4088, 5254340), (4745, 4526816), (5096, 4215020), (5110, 4203472), (5774, 3720080), (5840, 3678038), (6370, 3372016), (6643, 3233440), (7154, 3002480), (7280, 2950514), (7592, 2829260), (7840, 2739763), (8176, 2627170), (9490, 2263408), (10192, 2107510), (10220, 2101736), (11548, 1860040), (11680, 1839019), (12740, 1686008), (13286, 1616720), (14308, 1501240), (14435, 1488032), (14560, 1475257), (15184, 1414630), (16352, 1313585), (17885, 1200992), (18980, 1131704), (20209, 1062880), (20384, 1053755), (20440, 1050868), (23096, 930020), (25480, 843004), (26572, 808360), (28616, 750620), (28870, 744016), (30368, 707315), (33215, 646688), (35770, 600496), (37531, 572320), (37960, 565852), (40418, 531440), (40880, 525434), (46192, 465010), (46501, 461920), (50960, 421502), (53144, 404180), (57232, 375310), (57740, 372008), (66430, 323344), (71540, 300248), (75062, 286160), (75920, 282926), (80836, 265720), (81760, 262717), (92384, 232505), (93002, 230960), (101045, 212576), (101920, 210751), (106288, 202090), (114464, 187655), (115480, 186004), (132860, 161672), (141463, 151840), (143080, 150124)]