856375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:76

約数の個数: 32

約数和(自身を含む): 1257984

約数和(自身を除く): 401609

約数列:

[1, 5, 13, 17, 25, 31, 65, 85, 125, 155, 221, 325, 403, 425, 527, 775, 1105, 1625, 2015, 2125, 2635, 3875, 5525, 6851, 10075, 13175, 27625, 34255, 50375, 65875, 171275, 856375]

約数ペア:

[(1, 856375), (5, 171275), (13, 65875), (17, 50375), (25, 34255), (31, 27625), (65, 13175), (85, 10075), (125, 6851), (155, 5525), (221, 3875), (325, 2635), (403, 2125), (425, 2015), (527, 1625), (775, 1105)]