20178767560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:660

約数の個数: 256

約数和(自身を含む): 55771545600

約数和(自身を除く): 35592778040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 47, 56, 70, 92, 94, 115, 140, 161, 163, 184, 188, 230, 235, 280, 322, 326, 329, 376, 409, 460, 470, 644, 652, 658, 805, 815, 818, 920, 940, 1081, 1141, 1288, 1304, 1316, 1610, 1630, 1636, 1645, 1880, 2045, 2162, 2282, 2632, 2863, 3220, 3260, 3272, 3290, 3749, 4090, 4324, 4564, 5405, 5705, 5726, 6440, 6520, 6580, 7498, 7567, 7661, 8180, 8648, 9128, 9407, 10810, 11410, 11452, 13160, 14315, 14996, 15134, 15322, 16360, 18745, 18814, 19223, 21620, 22820, 22904, 26243, 28630, 29992, 30268, 30644, 37490, 37628, 37835, 38305, 38446, 43240, 45640, 47035, 52486, 53627, 57260, 60536, 61288, 65849, 66667, 74980, 75256, 75670, 76610, 76892, 94070, 96115, 104972, 107254, 114520, 131215, 131698, 133334, 134561, 149960, 151340, 153220, 153784, 176203, 188140, 192230, 209944, 214508, 262430, 263396, 266668, 268135, 269122, 302680, 306440, 329245, 333335, 352406, 376280, 384460, 429016, 442129, 466669, 524860, 526792, 533336, 536270, 538244, 658490, 666670, 672805, 704812, 768920, 881015, 884258, 933338, 1049720, 1072540, 1076488, 1233421, 1316980, 1333340, 1345610, 1409624, 1533341, 1762030, 1768516, 1866676, 2145080, 2210645, 2333345, 2466842, 2633960, 2666680, 2691220, 3066682, 3094903, 3133349, 3524060, 3537032, 3733352, 4421290, 4666690, 4933684, 5382440, 6133364, 6167105, 6189806, 6266698, 7048120, 7666705, 8842580, 9333380, 9867368, 10733387, 12266728, 12334210, 12379612, 12533396, 15333410, 15474515, 15666745, 17685160, 18666760, 21466774, 21933443, 24668420, 24759224, 25066792, 30666820, 30949030, 31333490, 42933548, 43866886, 49336840, 53666935, 61333640, 61898060, 62666980, 72067027, 85867096, 87733772, 107333870, 109667215, 123796120, 125333960, 144134054, 175467544, 214667740, 219334430, 288268108, 360335135, 429335480, 438668860, 504469189, 576536216, 720670270, 877337720, 1008938378, 1441340540, 2017876756, 2522345945, 2882681080, 4035753512, 5044691890, 10089383780, 20178767560]

約数ペア:

[(1, 20178767560), (2, 10089383780), (4, 5044691890), (5, 4035753512), (7, 2882681080), (8, 2522345945), (10, 2017876756), (14, 1441340540), (20, 1008938378), (23, 877337720), (28, 720670270), (35, 576536216), (40, 504469189), (46, 438668860), (47, 429335480), (56, 360335135), (70, 288268108), (92, 219334430), (94, 214667740), (115, 175467544), (140, 144134054), (161, 125333960), (163, 123796120), (184, 109667215), (188, 107333870), (230, 87733772), (235, 85867096), (280, 72067027), (322, 62666980), (326, 61898060), (329, 61333640), (376, 53666935), (409, 49336840), (460, 43866886), (470, 42933548), (644, 31333490), (652, 30949030), (658, 30666820), (805, 25066792), (815, 24759224), (818, 24668420), (920, 21933443), (940, 21466774), (1081, 18666760), (1141, 17685160), (1288, 15666745), (1304, 15474515), (1316, 15333410), (1610, 12533396), (1630, 12379612), (1636, 12334210), (1645, 12266728), (1880, 10733387), (2045, 9867368), (2162, 9333380), (2282, 8842580), (2632, 7666705), (2863, 7048120), (3220, 6266698), (3260, 6189806), (3272, 6167105), (3290, 6133364), (3749, 5382440), (4090, 4933684), (4324, 4666690), (4564, 4421290), (5405, 3733352), (5705, 3537032), (5726, 3524060), (6440, 3133349), (6520, 3094903), (6580, 3066682), (7498, 2691220), (7567, 2666680), (7661, 2633960), (8180, 2466842), (8648, 2333345), (9128, 2210645), (9407, 2145080), (10810, 1866676), (11410, 1768516), (11452, 1762030), (13160, 1533341), (14315, 1409624), (14996, 1345610), (15134, 1333340), (15322, 1316980), (16360, 1233421), (18745, 1076488), (18814, 1072540), (19223, 1049720), (21620, 933338), (22820, 884258), (22904, 881015), (26243, 768920), (28630, 704812), (29992, 672805), (30268, 666670), (30644, 658490), (37490, 538244), (37628, 536270), (37835, 533336), (38305, 526792), (38446, 524860), (43240, 466669), (45640, 442129), (47035, 429016), (52486, 384460), (53627, 376280), (57260, 352406), (60536, 333335), (61288, 329245), (65849, 306440), (66667, 302680), (74980, 269122), (75256, 268135), (75670, 266668), (76610, 263396), (76892, 262430), (94070, 214508), (96115, 209944), (104972, 192230), (107254, 188140), (114520, 176203), (131215, 153784), (131698, 153220), (133334, 151340), (134561, 149960)]