41972680

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1637}}^1$

素因数の和:2289

約数の個数: 32

約数和(自身を含む): 94643640

約数和(自身を除く): 52670960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 1637, 2564, 3205, 3274, 5128, 6410, 6548, 8185, 12820, 13096, 16370, 25640, 32740, 65480, 1049317, 2098634, 4197268, 5246585, 8394536, 10493170, 20986340, 41972680]

約数ペア:

[(1, 41972680), (2, 20986340), (4, 10493170), (5, 8394536), (8, 5246585), (10, 4197268), (20, 2098634), (40, 1049317), (641, 65480), (1282, 32740), (1637, 25640), (2564, 16370), (3205, 13096), (3274, 12820), (5128, 8185), (6410, 6548)]