716931640

素因数分解:

$2^3\times 5^1\times {\mathrm{1861}}^1\times {\mathrm{9631}}^1$

素因数の和:11503

約数の個数: 32

約数和(自身を含む): 1614130560

約数和(自身を除く): 897198920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1861, 3722, 7444, 9305, 9631, 14888, 18610, 19262, 37220, 38524, 48155, 74440, 77048, 96310, 192620, 385240, 17923291, 35846582, 71693164, 89616455, 143386328, 179232910, 358465820, 716931640]

約数ペア:

[(1, 716931640), (2, 358465820), (4, 179232910), (5, 143386328), (8, 89616455), (10, 71693164), (20, 35846582), (40, 17923291), (1861, 385240), (3722, 192620), (7444, 96310), (9305, 77048), (9631, 74440), (14888, 48155), (18610, 38524), (19262, 37220)]