123515625

素因数分解:

$3^1\times 5^7\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:86

約数の個数: 64

約数和(自身を含む): 224999424

約数和(自身を除く): 101483799

約数列:

[1, 3, 5, 15, 17, 25, 31, 51, 75, 85, 93, 125, 155, 255, 375, 425, 465, 527, 625, 775, 1275, 1581, 1875, 2125, 2325, 2635, 3125, 3875, 6375, 7905, 9375, 10625, 11625, 13175, 15625, 19375, 31875, 39525, 46875, 53125, 58125, 65875, 78125, 96875, 159375, 197625, 234375, 265625, 290625, 329375, 484375, 796875, 988125, 1328125, 1453125, 1646875, 2421875, 3984375, 4940625, 7265625, 8234375, 24703125, 41171875, 123515625]

約数ペア:

[(1, 123515625), (3, 41171875), (5, 24703125), (15, 8234375), (17, 7265625), (25, 4940625), (31, 3984375), (51, 2421875), (75, 1646875), (85, 1453125), (93, 1328125), (125, 988125), (155, 796875), (255, 484375), (375, 329375), (425, 290625), (465, 265625), (527, 234375), (625, 197625), (775, 159375), (1275, 96875), (1581, 78125), (1875, 65875), (2125, 58125), (2325, 53125), (2635, 46875), (3125, 39525), (3875, 31875), (6375, 19375), (7905, 15625), (9375, 13175), (10625, 11625)]