91781240

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{22277}}^1$

素因数の和:22391

約数の個数: 32

約数和(自身を含む): 208522080

約数和(自身を除く): 116740840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 22277, 44554, 89108, 111385, 178216, 222770, 445540, 891080, 2294531, 4589062, 9178124, 11472655, 18356248, 22945310, 45890620, 91781240]

約数ペア:

[(1, 91781240), (2, 45890620), (4, 22945310), (5, 18356248), (8, 11472655), (10, 9178124), (20, 4589062), (40, 2294531), (103, 891080), (206, 445540), (412, 222770), (515, 178216), (824, 111385), (1030, 89108), (2060, 44554), (4120, 22277)]