81793375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 110028672

約数和(自身を除く): 28235297

約数列:

[1, 5, 17, 25, 61, 85, 125, 305, 425, 631, 1037, 1525, 2125, 3155, 5185, 7625, 10727, 15775, 25925, 38491, 53635, 78875, 129625, 192455, 268175, 654347, 962275, 1340875, 3271735, 4811375, 16358675, 81793375]

約数ペア:

[(1, 81793375), (5, 16358675), (17, 4811375), (25, 3271735), (61, 1340875), (85, 962275), (125, 654347), (305, 268175), (425, 192455), (631, 129625), (1037, 78875), (1525, 53635), (2125, 38491), (3155, 25925), (5185, 15775), (7625, 10727)]