285440180

素因数分解:

$2^2\times 5^1\times {\mathrm{1861}}^1\times {\mathrm{7669}}^1$

素因数の和:9539

約数の個数: 24

約数和(自身を含む): 599824680

約数和(自身を除く): 314384500

約数列:

[1, 2, 4, 5, 10, 20, 1861, 3722, 7444, 7669, 9305, 15338, 18610, 30676, 37220, 38345, 76690, 153380, 14272009, 28544018, 57088036, 71360045, 142720090, 285440180]

約数ペア:

[(1, 285440180), (2, 142720090), (4, 71360045), (5, 57088036), (10, 28544018), (20, 14272009), (1861, 153380), (3722, 76690), (7444, 38345), (7669, 37220), (9305, 30676), (15338, 18610)]