280150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:456

約数の個数: 24

約数和(自身を含む): 562464

約数和(自身を除く): 282314

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 431, 650, 862, 2155, 4310, 5603, 10775, 11206, 21550, 28015, 56030, 140075, 280150]

約数ペア:

[(1, 280150), (2, 140075), (5, 56030), (10, 28015), (13, 21550), (25, 11206), (26, 10775), (50, 5603), (65, 4310), (130, 2155), (325, 862), (431, 650)]