53681875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{6607}}^1$

素因数の和:6640

約数の個数: 20

約数和(自身を含む): 72251872

約数和(自身を除く): 18569997

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 6607, 8125, 33035, 85891, 165175, 429455, 825875, 2147275, 4129375, 10736375, 53681875]

約数ペア:

[(1, 53681875), (5, 10736375), (13, 4129375), (25, 2147275), (65, 825875), (125, 429455), (325, 165175), (625, 85891), (1625, 33035), (6607, 8125)]