13139725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{719}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 17677440

約数和(自身を除く): 4537715

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 719, 731, 1075, 3595, 3655, 12223, 17975, 18275, 30917, 61115, 154585, 305575, 525589, 772925, 2627945, 13139725]

約数ペア:

[(1, 13139725), (5, 2627945), (17, 772925), (25, 525589), (43, 305575), (85, 154585), (215, 61115), (425, 30917), (719, 18275), (731, 17975), (1075, 12223), (3595, 3655)]