20400824018

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{1122281}}^1$

素因数の和:1122493

約数の個数: 16

約数和(自身を含む): 31311667800

約数和(自身を除く): 10910843782

約数列:

[1, 2, 61, 122, 149, 298, 9089, 18178, 1122281, 2244562, 68459141, 136918282, 167219869, 334439738, 10200412009, 20400824018]

約数ペア:

[(1, 20400824018), (2, 10200412009), (61, 334439738), (122, 167219869), (149, 136918282), (298, 68459141), (9089, 2244562), (18178, 1122281)]