18195080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7457}}^1$

素因数の和:7529

約数の個数: 32

約数和(自身を含む): 41615640

約数和(自身を除く): 23420560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7457, 14914, 29828, 37285, 59656, 74570, 149140, 298280, 454877, 909754, 1819508, 2274385, 3639016, 4548770, 9097540, 18195080]

約数ペア:

[(1, 18195080), (2, 9097540), (4, 4548770), (5, 3639016), (8, 2274385), (10, 1819508), (20, 909754), (40, 454877), (61, 298280), (122, 149140), (244, 74570), (305, 59656), (488, 37285), (610, 29828), (1220, 14914), (2440, 7457)]