40507820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15461}}^1$

素因数の和:15601

約数の個数: 24

約数和(自身を含む): 85721328

約数和(自身を除く): 45213508

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 15461, 30922, 61844, 77305, 154610, 309220, 2025391, 4050782, 8101564, 10126955, 20253910, 40507820]

約数ペア:

[(1, 40507820), (2, 20253910), (4, 10126955), (5, 8101564), (10, 4050782), (20, 2025391), (131, 309220), (262, 154610), (524, 77305), (655, 61844), (1310, 30922), (2620, 15461)]