20107580

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{12113}}^1$

素因数の和:12205

約数の個数: 24

約数和(自身を含む): 42738192

約数和(自身を除く): 22630612

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 12113, 24226, 48452, 60565, 121130, 242260, 1005379, 2010758, 4021516, 5026895, 10053790, 20107580]

約数ペア:

[(1, 20107580), (2, 10053790), (4, 5026895), (5, 4021516), (10, 2010758), (20, 1005379), (83, 242260), (166, 121130), (332, 60565), (415, 48452), (830, 24226), (1660, 12113)]