31871920

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3137}}^1$

素因数の和:3277

約数の個数: 40

約数和(自身を含む): 74709504

約数和(自身を除く): 42837584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 3137, 5080, 6274, 10160, 12548, 15685, 25096, 31370, 50192, 62740, 125480, 250960, 398399, 796798, 1593596, 1991995, 3187192, 3983990, 6374384, 7967980, 15935960, 31871920]

約数ペア:

[(1, 31871920), (2, 15935960), (4, 7967980), (5, 6374384), (8, 3983990), (10, 3187192), (16, 1991995), (20, 1593596), (40, 796798), (80, 398399), (127, 250960), (254, 125480), (508, 62740), (635, 50192), (1016, 31370), (1270, 25096), (2032, 15685), (2540, 12548), (3137, 10160), (5080, 6274)]