20147133640

素因数分解:

$2^3\times 5^1\times {\mathrm{6947}}^1\times {\mathrm{72503}}^1$

素因数の和:79461

約数の個数: 32

約数和(自身を含む): 45338201280

約数和(自身を除く): 25191067640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6947, 13894, 27788, 34735, 55576, 69470, 72503, 138940, 145006, 277880, 290012, 362515, 580024, 725030, 1450060, 2900120, 503678341, 1007356682, 2014713364, 2518391705, 4029426728, 5036783410, 10073566820, 20147133640]

約数ペア:

[(1, 20147133640), (2, 10073566820), (4, 5036783410), (5, 4029426728), (8, 2518391705), (10, 2014713364), (20, 1007356682), (40, 503678341), (6947, 2900120), (13894, 1450060), (27788, 725030), (34735, 580024), (55576, 362515), (69470, 290012), (72503, 277880), (138940, 145006)]