72609980

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{22273}}^1$

素因数の和:22445

約数の個数: 24

約数和(自身を含む): 153423312

約数和(自身を除く): 80813332

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 22273, 44546, 89092, 111365, 222730, 445460, 3630499, 7260998, 14521996, 18152495, 36304990, 72609980]

約数ペア:

[(1, 72609980), (2, 36304990), (4, 18152495), (5, 14521996), (10, 7260998), (20, 3630499), (163, 445460), (326, 222730), (652, 111365), (815, 89092), (1630, 44546), (3260, 22273)]