321126875

素因数分解:

$5^4\times {\mathrm{61}}^1\times {\mathrm{8423}}^1$

素因数の和:8504

約数の個数: 20

約数和(自身を含む): 407906928

約数和(自身を除く): 86780053

約数列:

[1, 5, 25, 61, 125, 305, 625, 1525, 7625, 8423, 38125, 42115, 210575, 513803, 1052875, 2569015, 5264375, 12845075, 64225375, 321126875]

約数ペア:

[(1, 321126875), (5, 64225375), (25, 12845075), (61, 5264375), (125, 2569015), (305, 1052875), (625, 513803), (1525, 210575), (7625, 42115), (8423, 38125)]