687601820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1\times {\mathrm{1181}}^1$

素因数の和:1910

約数の個数: 48

約数和(自身を含む): 1480979808

約数和(自身を除く): 793377988

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 677, 860, 1181, 1354, 2362, 2708, 3385, 4724, 5905, 6770, 11810, 13540, 23620, 29111, 50783, 58222, 101566, 116444, 145555, 203132, 253915, 291110, 507830, 582220, 799537, 1015660, 1599074, 3198148, 3997685, 7995370, 15990740, 34380091, 68760182, 137520364, 171900455, 343800910, 687601820]

約数ペア:

[(1, 687601820), (2, 343800910), (4, 171900455), (5, 137520364), (10, 68760182), (20, 34380091), (43, 15990740), (86, 7995370), (172, 3997685), (215, 3198148), (430, 1599074), (677, 1015660), (860, 799537), (1181, 582220), (1354, 507830), (2362, 291110), (2708, 253915), (3385, 203132), (4724, 145555), (5905, 116444), (6770, 101566), (11810, 58222), (13540, 50783), (23620, 29111)]