18642625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:346

約数の個数: 32

約数和(自身を含む): 25519104

約数和(自身を除く): 6876479

約数列:

[1, 5, 17, 25, 31, 85, 125, 155, 283, 425, 527, 775, 1415, 2125, 2635, 3875, 4811, 7075, 8773, 13175, 24055, 35375, 43865, 65875, 120275, 149141, 219325, 601375, 745705, 1096625, 3728525, 18642625]

約数ペア:

[(1, 18642625), (5, 3728525), (17, 1096625), (25, 745705), (31, 601375), (85, 219325), (125, 149141), (155, 120275), (283, 65875), (425, 43865), (527, 35375), (775, 24055), (1415, 13175), (2125, 8773), (2635, 7075), (3875, 4811)]