640428528042

素因数分解:

$2^1\times 3^2\times {\mathrm{281}}^1\times {\mathrm{126616949}}^1$

素因数の和:126617238

約数の個数: 24

約数和(自身を含む): 1392533216100

約数和(自身を除く): 752104688058

約数列:

[1, 2, 3, 6, 9, 18, 281, 562, 843, 1686, 2529, 5058, 126616949, 253233898, 379850847, 759701694, 1139552541, 2279105082, 35579362669, 71158725338, 106738088007, 213476176014, 320214264021, 640428528042]

約数ペア:

[(1, 640428528042), (2, 320214264021), (3, 213476176014), (6, 106738088007), (9, 71158725338), (18, 35579362669), (281, 2279105082), (562, 1139552541), (843, 759701694), (1686, 379850847), (2529, 253233898), (5058, 126616949)]