31540275

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:333

約数の個数: 72

約数和(自身を含む): 62558496

約数和(自身を除く): 31018221

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 41, 45, 65, 75, 117, 123, 195, 205, 225, 263, 325, 369, 533, 585, 615, 789, 975, 1025, 1315, 1599, 1845, 2367, 2665, 2925, 3075, 3419, 3945, 4797, 6575, 7995, 9225, 10257, 10783, 11835, 13325, 17095, 19725, 23985, 30771, 32349, 39975, 51285, 53915, 59175, 85475, 97047, 119925, 140179, 153855, 161745, 256425, 269575, 420537, 485235, 700895, 769275, 808725, 1261611, 2102685, 2426175, 3504475, 6308055, 10513425, 31540275]

約数ペア:

[(1, 31540275), (3, 10513425), (5, 6308055), (9, 3504475), (13, 2426175), (15, 2102685), (25, 1261611), (39, 808725), (41, 769275), (45, 700895), (65, 485235), (75, 420537), (117, 269575), (123, 256425), (195, 161745), (205, 153855), (225, 140179), (263, 119925), (325, 97047), (369, 85475), (533, 59175), (585, 53915), (615, 51285), (789, 39975), (975, 32349), (1025, 30771), (1315, 23985), (1599, 19725), (1845, 17095), (2367, 13325), (2665, 11835), (2925, 10783), (3075, 10257), (3419, 9225), (3945, 7995), (4797, 6575)]