20882375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:380

約数の個数: 32

約数和(自身を含む): 28574208

約数和(自身を除く): 7691833

約数列:

[1, 5, 17, 25, 31, 85, 125, 155, 317, 425, 527, 775, 1585, 2125, 2635, 3875, 5389, 7925, 9827, 13175, 26945, 39625, 49135, 65875, 134725, 167059, 245675, 673625, 835295, 1228375, 4176475, 20882375]

約数ペア:

[(1, 20882375), (5, 4176475), (17, 1228375), (25, 835295), (31, 673625), (85, 245675), (125, 167059), (155, 134725), (317, 65875), (425, 49135), (527, 39625), (775, 26945), (1585, 13175), (2125, 9827), (2635, 7925), (3875, 5389)]