31352625

素因数分解:

$3^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:112

約数の個数: 72

約数和(自身を含む): 60414120

約数和(自身を除く): 29061495

約数列:

[1, 3, 5, 9, 15, 25, 29, 31, 45, 75, 87, 93, 125, 145, 155, 225, 261, 279, 375, 435, 465, 725, 775, 899, 961, 1125, 1305, 1395, 2175, 2325, 2697, 2883, 3625, 3875, 4495, 4805, 6525, 6975, 8091, 8649, 10875, 11625, 13485, 14415, 22475, 24025, 27869, 32625, 34875, 40455, 43245, 67425, 72075, 83607, 112375, 120125, 139345, 202275, 216225, 250821, 337125, 360375, 418035, 696725, 1011375, 1081125, 1254105, 2090175, 3483625, 6270525, 10450875, 31352625]

約数ペア:

[(1, 31352625), (3, 10450875), (5, 6270525), (9, 3483625), (15, 2090175), (25, 1254105), (29, 1081125), (31, 1011375), (45, 696725), (75, 418035), (87, 360375), (93, 337125), (125, 250821), (145, 216225), (155, 202275), (225, 139345), (261, 120125), (279, 112375), (375, 83607), (435, 72075), (465, 67425), (725, 43245), (775, 40455), (899, 34875), (961, 32625), (1125, 27869), (1305, 24025), (1395, 22475), (2175, 14415), (2325, 13485), (2697, 11625), (2883, 10875), (3625, 8649), (3875, 8091), (4495, 6975), (4805, 6525)]