21764880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:118

約数の個数: 240

約数和(自身を含む): 80857920

約数和(自身を除く): 59093040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 37, 38, 40, 43, 45, 48, 57, 60, 72, 74, 76, 80, 86, 90, 95, 111, 114, 120, 129, 144, 148, 152, 171, 172, 180, 185, 190, 215, 222, 228, 240, 258, 285, 296, 304, 333, 342, 344, 360, 370, 380, 387, 430, 444, 456, 516, 555, 570, 592, 645, 666, 684, 688, 703, 720, 740, 760, 774, 817, 855, 860, 888, 912, 1032, 1110, 1140, 1290, 1332, 1368, 1406, 1480, 1520, 1548, 1591, 1634, 1665, 1710, 1720, 1776, 1935, 2064, 2109, 2220, 2280, 2451, 2580, 2664, 2736, 2812, 2960, 3096, 3182, 3268, 3330, 3420, 3440, 3515, 3870, 4085, 4218, 4440, 4560, 4773, 4902, 5160, 5328, 5624, 6192, 6327, 6364, 6536, 6660, 6840, 7030, 7353, 7740, 7955, 8170, 8436, 8880, 9546, 9804, 10320, 10545, 11248, 12255, 12654, 12728, 13072, 13320, 13680, 14060, 14319, 14706, 15480, 15910, 16340, 16872, 19092, 19608, 21090, 23865, 24510, 25308, 25456, 26640, 28120, 28638, 29412, 30229, 30960, 31635, 31820, 32680, 33744, 36765, 38184, 39216, 42180, 47730, 49020, 50616, 56240, 57276, 58824, 60458, 63270, 63640, 65360, 71595, 73530, 76368, 84360, 90687, 95460, 98040, 101232, 114552, 117648, 120916, 126540, 127280, 143190, 147060, 151145, 168720, 181374, 190920, 196080, 229104, 241832, 253080, 272061, 286380, 294120, 302290, 362748, 381840, 453435, 483664, 506160, 544122, 572760, 588240, 604580, 725496, 906870, 1088244, 1145520, 1209160, 1360305, 1450992, 1813740, 2176488, 2418320, 2720610, 3627480, 4352976, 5441220, 7254960, 10882440, 21764880]

約数ペア:

[(1, 21764880), (2, 10882440), (3, 7254960), (4, 5441220), (5, 4352976), (6, 3627480), (8, 2720610), (9, 2418320), (10, 2176488), (12, 1813740), (15, 1450992), (16, 1360305), (18, 1209160), (19, 1145520), (20, 1088244), (24, 906870), (30, 725496), (36, 604580), (37, 588240), (38, 572760), (40, 544122), (43, 506160), (45, 483664), (48, 453435), (57, 381840), (60, 362748), (72, 302290), (74, 294120), (76, 286380), (80, 272061), (86, 253080), (90, 241832), (95, 229104), (111, 196080), (114, 190920), (120, 181374), (129, 168720), (144, 151145), (148, 147060), (152, 143190), (171, 127280), (172, 126540), (180, 120916), (185, 117648), (190, 114552), (215, 101232), (222, 98040), (228, 95460), (240, 90687), (258, 84360), (285, 76368), (296, 73530), (304, 71595), (333, 65360), (342, 63640), (344, 63270), (360, 60458), (370, 58824), (380, 57276), (387, 56240), (430, 50616), (444, 49020), (456, 47730), (516, 42180), (555, 39216), (570, 38184), (592, 36765), (645, 33744), (666, 32680), (684, 31820), (688, 31635), (703, 30960), (720, 30229), (740, 29412), (760, 28638), (774, 28120), (817, 26640), (855, 25456), (860, 25308), (888, 24510), (912, 23865), (1032, 21090), (1110, 19608), (1140, 19092), (1290, 16872), (1332, 16340), (1368, 15910), (1406, 15480), (1480, 14706), (1520, 14319), (1548, 14060), (1591, 13680), (1634, 13320), (1665, 13072), (1710, 12728), (1720, 12654), (1776, 12255), (1935, 11248), (2064, 10545), (2109, 10320), (2220, 9804), (2280, 9546), (2451, 8880), (2580, 8436), (2664, 8170), (2736, 7955), (2812, 7740), (2960, 7353), (3096, 7030), (3182, 6840), (3268, 6660), (3330, 6536), (3420, 6364), (3440, 6327), (3515, 6192), (3870, 5624), (4085, 5328), (4218, 5160), (4440, 4902), (4560, 4773)]