646132465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1\times {\mathrm{379}}^1$

素因数の和:757

約数の個数: 32

約数和(自身を含む): 858009600

約数和(自身を除く): 211877135

約数列:

[1, 5, 11, 55, 139, 223, 379, 695, 1115, 1529, 1895, 2453, 4169, 7645, 12265, 20845, 30997, 52681, 84517, 154985, 263405, 340967, 422585, 579491, 929687, 1704835, 2897455, 4648435, 11747863, 58739315, 129226493, 646132465]

約数ペア:

[(1, 646132465), (5, 129226493), (11, 58739315), (55, 11747863), (139, 4648435), (223, 2897455), (379, 1704835), (695, 929687), (1115, 579491), (1529, 422585), (1895, 340967), (2453, 263405), (4169, 154985), (7645, 84517), (12265, 52681), (20845, 30997)]