20180390960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{233}}^1\times {\mathrm{2999}}^1$

素因数の和:3283

約数の個数: 120

約数和(自身を含む): 49747932000

約数和(自身を除く): 29567541040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 233, 304, 361, 380, 466, 722, 760, 932, 1165, 1444, 1520, 1805, 1864, 2330, 2888, 2999, 3610, 3728, 4427, 4660, 5776, 5998, 7220, 8854, 9320, 11996, 14440, 14995, 17708, 18640, 22135, 23992, 28880, 29990, 35416, 44270, 47984, 56981, 59980, 70832, 84113, 88540, 113962, 119960, 168226, 177080, 227924, 239920, 284905, 336452, 354160, 420565, 455848, 569810, 672904, 698767, 841130, 911696, 1082639, 1139620, 1345808, 1397534, 1682260, 2165278, 2279240, 2795068, 3364520, 3493835, 4330556, 4558480, 5413195, 5590136, 6729040, 6987670, 8661112, 10826390, 11180272, 13276573, 13975340, 17322224, 21652780, 26553146, 27950680, 43305560, 53106292, 55901360, 66382865, 86611120, 106212584, 132765730, 212425168, 252254887, 265531460, 504509774, 531062920, 1009019548, 1062125840, 1261274435, 2018039096, 2522548870, 4036078192, 5045097740, 10090195480, 20180390960]

約数ペア:

[(1, 20180390960), (2, 10090195480), (4, 5045097740), (5, 4036078192), (8, 2522548870), (10, 2018039096), (16, 1261274435), (19, 1062125840), (20, 1009019548), (38, 531062920), (40, 504509774), (76, 265531460), (80, 252254887), (95, 212425168), (152, 132765730), (190, 106212584), (233, 86611120), (304, 66382865), (361, 55901360), (380, 53106292), (466, 43305560), (722, 27950680), (760, 26553146), (932, 21652780), (1165, 17322224), (1444, 13975340), (1520, 13276573), (1805, 11180272), (1864, 10826390), (2330, 8661112), (2888, 6987670), (2999, 6729040), (3610, 5590136), (3728, 5413195), (4427, 4558480), (4660, 4330556), (5776, 3493835), (5998, 3364520), (7220, 2795068), (8854, 2279240), (9320, 2165278), (11996, 1682260), (14440, 1397534), (14995, 1345808), (17708, 1139620), (18640, 1082639), (22135, 911696), (23992, 841130), (28880, 698767), (29990, 672904), (35416, 569810), (44270, 455848), (47984, 420565), (56981, 354160), (59980, 336452), (70832, 284905), (84113, 239920), (88540, 227924), (113962, 177080), (119960, 168226)]