4018375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:124

約数の個数: 32

約数和(自身を含む): 5571072

約数和(自身を除く): 1552697

約数列:

[1, 5, 17, 25, 31, 61, 85, 125, 155, 305, 425, 527, 775, 1037, 1525, 1891, 2125, 2635, 3875, 5185, 7625, 9455, 13175, 25925, 32147, 47275, 65875, 129625, 160735, 236375, 803675, 4018375]

約数ペア:

[(1, 4018375), (5, 803675), (17, 236375), (25, 160735), (31, 129625), (61, 65875), (85, 47275), (125, 32147), (155, 25925), (305, 13175), (425, 9455), (527, 7625), (775, 5185), (1037, 3875), (1525, 2635), (1891, 2125)]