25284375

素因数分解:

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

素因数の和:91

約数の個数: 72

約数和(自身を含む): 48746880

約数和(自身を除く): 23462505

約数列:

[1, 3, 5, 9, 15, 25, 29, 31, 45, 75, 87, 93, 125, 145, 155, 225, 261, 279, 375, 435, 465, 625, 725, 775, 899, 1125, 1305, 1395, 1875, 2175, 2325, 2697, 3125, 3625, 3875, 4495, 5625, 6525, 6975, 8091, 9375, 10875, 11625, 13485, 18125, 19375, 22475, 28125, 32625, 34875, 40455, 54375, 58125, 67425, 90625, 96875, 112375, 163125, 174375, 202275, 271875, 290625, 337125, 561875, 815625, 871875, 1011375, 1685625, 2809375, 5056875, 8428125, 25284375]

約数ペア:

[(1, 25284375), (3, 8428125), (5, 5056875), (9, 2809375), (15, 1685625), (25, 1011375), (29, 871875), (31, 815625), (45, 561875), (75, 337125), (87, 290625), (93, 271875), (125, 202275), (145, 174375), (155, 163125), (225, 112375), (261, 96875), (279, 90625), (375, 67425), (435, 58125), (465, 54375), (625, 40455), (725, 34875), (775, 32625), (899, 28125), (1125, 22475), (1305, 19375), (1395, 18125), (1875, 13485), (2175, 11625), (2325, 10875), (2697, 9375), (3125, 8091), (3625, 6975), (3875, 6525), (4495, 5625)]