28103725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2011}}^1$

素因数の和:2077

約数の個数: 24

約数和(自身を含む): 38421152

約数和(自身を除く): 10317427

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 2011, 2795, 10055, 13975, 26143, 50275, 86473, 130715, 432365, 653575, 1124149, 2161825, 5620745, 28103725]

約数ペア:

[(1, 28103725), (5, 5620745), (13, 2161825), (25, 1124149), (43, 653575), (65, 432365), (215, 130715), (325, 86473), (559, 50275), (1075, 26143), (2011, 13975), (2795, 10055)]