80475400

素因数分解:

$2^3\times 5^2\times {\mathrm{211}}^1\times {\mathrm{1907}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 188090640

約数和(自身を除く): 107615240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 211, 422, 844, 1055, 1688, 1907, 2110, 3814, 4220, 5275, 7628, 8440, 9535, 10550, 15256, 19070, 21100, 38140, 42200, 47675, 76280, 95350, 190700, 381400, 402377, 804754, 1609508, 2011885, 3219016, 4023770, 8047540, 10059425, 16095080, 20118850, 40237700, 80475400]

約数ペア:

[(1, 80475400), (2, 40237700), (4, 20118850), (5, 16095080), (8, 10059425), (10, 8047540), (20, 4023770), (25, 3219016), (40, 2011885), (50, 1609508), (100, 804754), (200, 402377), (211, 381400), (422, 190700), (844, 95350), (1055, 76280), (1688, 47675), (1907, 42200), (2110, 38140), (3814, 21100), (4220, 19070), (5275, 15256), (7628, 10550), (8440, 9535)]