81032360

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{3637}}^1$

素因数の和:4205

約数の個数: 32

約数和(自身を含む): 182700360

約数和(自身を除く): 101668000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 3637, 4456, 5570, 7274, 11140, 14548, 18185, 22280, 29096, 36370, 72740, 145480, 2025809, 4051618, 8103236, 10129045, 16206472, 20258090, 40516180, 81032360]

約数ペア:

[(1, 81032360), (2, 40516180), (4, 20258090), (5, 16206472), (8, 10129045), (10, 8103236), (20, 4051618), (40, 2025809), (557, 145480), (1114, 72740), (2228, 36370), (2785, 29096), (3637, 22280), (4456, 18185), (5570, 14548), (7274, 11140)]