1639843640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{36571}}^1$

素因数の和:36660

約数の個数: 64

約数和(自身を含む): 3949776000

約数和(自身を除く): 2309932360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 59, 76, 95, 118, 152, 190, 236, 295, 380, 472, 590, 760, 1121, 1180, 2242, 2360, 4484, 5605, 8968, 11210, 22420, 36571, 44840, 73142, 146284, 182855, 292568, 365710, 694849, 731420, 1389698, 1462840, 2157689, 2779396, 3474245, 4315378, 5558792, 6948490, 8630756, 10788445, 13896980, 17261512, 21576890, 27793960, 40996091, 43153780, 81992182, 86307560, 163984364, 204980455, 327968728, 409960910, 819921820, 1639843640]

約数ペア:

[(1, 1639843640), (2, 819921820), (4, 409960910), (5, 327968728), (8, 204980455), (10, 163984364), (19, 86307560), (20, 81992182), (38, 43153780), (40, 40996091), (59, 27793960), (76, 21576890), (95, 17261512), (118, 13896980), (152, 10788445), (190, 8630756), (236, 6948490), (295, 5558792), (380, 4315378), (472, 3474245), (590, 2779396), (760, 2157689), (1121, 1462840), (1180, 1389698), (2242, 731420), (2360, 694849), (4484, 365710), (5605, 292568), (8968, 182855), (11210, 146284), (22420, 73142), (36571, 44840)]