20165741920

素因数分解:

$2^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{12421}}^1$

素因数の和:12648

約数の個数: 96

約数和(自身を含む): 48645545760

約数和(自身を除く): 28479803840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 73, 80, 139, 146, 160, 278, 292, 365, 556, 584, 695, 730, 1112, 1168, 1390, 1460, 2224, 2336, 2780, 2920, 4448, 5560, 5840, 10147, 11120, 11680, 12421, 20294, 22240, 24842, 40588, 49684, 50735, 62105, 81176, 99368, 101470, 124210, 162352, 198736, 202940, 248420, 324704, 397472, 405880, 496840, 811760, 906733, 993680, 1623520, 1726519, 1813466, 1987360, 3453038, 3626932, 4533665, 6906076, 7253864, 8632595, 9067330, 13812152, 14507728, 17265190, 18134660, 27624304, 29015456, 34530380, 36269320, 55248608, 69060760, 72538640, 126035887, 138121520, 145077280, 252071774, 276243040, 504143548, 630179435, 1008287096, 1260358870, 2016574192, 2520717740, 4033148384, 5041435480, 10082870960, 20165741920]

約数ペア:

[(1, 20165741920), (2, 10082870960), (4, 5041435480), (5, 4033148384), (8, 2520717740), (10, 2016574192), (16, 1260358870), (20, 1008287096), (32, 630179435), (40, 504143548), (73, 276243040), (80, 252071774), (139, 145077280), (146, 138121520), (160, 126035887), (278, 72538640), (292, 69060760), (365, 55248608), (556, 36269320), (584, 34530380), (695, 29015456), (730, 27624304), (1112, 18134660), (1168, 17265190), (1390, 14507728), (1460, 13812152), (2224, 9067330), (2336, 8632595), (2780, 7253864), (2920, 6906076), (4448, 4533665), (5560, 3626932), (5840, 3453038), (10147, 1987360), (11120, 1813466), (11680, 1726519), (12421, 1623520), (20294, 993680), (22240, 906733), (24842, 811760), (40588, 496840), (49684, 405880), (50735, 397472), (62105, 324704), (81176, 248420), (99368, 202940), (101470, 198736), (124210, 162352)]