91321520

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2791}}^1$

素因数の和:3213

約数の個数: 40

約数和(自身を含む): 212917920

約数和(自身を除く): 121596400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 2791, 3272, 4090, 5582, 6544, 8180, 11164, 13955, 16360, 22328, 27910, 32720, 44656, 55820, 111640, 223280, 1141519, 2283038, 4566076, 5707595, 9132152, 11415190, 18264304, 22830380, 45660760, 91321520]

約数ペア:

[(1, 91321520), (2, 45660760), (4, 22830380), (5, 18264304), (8, 11415190), (10, 9132152), (16, 5707595), (20, 4566076), (40, 2283038), (80, 1141519), (409, 223280), (818, 111640), (1636, 55820), (2045, 44656), (2791, 32720), (3272, 27910), (4090, 22328), (5582, 16360), (6544, 13955), (8180, 11164)]