40388564

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{881}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 72186408

約数和(自身を除く): 31797844

約数列:

[1, 2, 4, 73, 146, 157, 292, 314, 628, 881, 1762, 3524, 11461, 22922, 45844, 64313, 128626, 138317, 257252, 276634, 553268, 10097141, 20194282, 40388564]

約数ペア:

[(1, 40388564), (2, 20194282), (4, 10097141), (73, 553268), (146, 276634), (157, 257252), (292, 138317), (314, 128626), (628, 64313), (881, 45844), (1762, 22922), (3524, 11461)]