1220625

素因数分解:

$3^2\times 5^4\times 7^1\times {\mathrm{31}}^1$

素因数の和:64

約数の個数: 60

約数和(自身を含む): 2599168

約数和(自身を除く): 1378543

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 31, 35, 45, 63, 75, 93, 105, 125, 155, 175, 217, 225, 279, 315, 375, 465, 525, 625, 651, 775, 875, 1085, 1125, 1395, 1575, 1875, 1953, 2325, 2625, 3255, 3875, 4375, 5425, 5625, 6975, 7875, 9765, 11625, 13125, 16275, 19375, 27125, 34875, 39375, 48825, 58125, 81375, 135625, 174375, 244125, 406875, 1220625]

約数ペア:

[(1, 1220625), (3, 406875), (5, 244125), (7, 174375), (9, 135625), (15, 81375), (21, 58125), (25, 48825), (31, 39375), (35, 34875), (45, 27125), (63, 19375), (75, 16275), (93, 13125), (105, 11625), (125, 9765), (155, 7875), (175, 6975), (217, 5625), (225, 5425), (279, 4375), (315, 3875), (375, 3255), (465, 2625), (525, 2325), (625, 1953), (651, 1875), (775, 1575), (875, 1395), (1085, 1125)]