20772725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1321}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 28031688

約数和(自身を除く): 7258963

約数列:

[1, 5, 17, 25, 37, 85, 185, 425, 629, 925, 1321, 3145, 6605, 15725, 22457, 33025, 48877, 112285, 244385, 561425, 830909, 1221925, 4154545, 20772725]

約数ペア:

[(1, 20772725), (5, 4154545), (17, 1221925), (25, 830909), (37, 561425), (85, 244385), (185, 112285), (425, 48877), (629, 33025), (925, 22457), (1321, 15725), (3145, 6605)]