71899580

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{43313}}^1$

素因数の和:43405

約数の個数: 24

約数和(自身を含む): 152811792

約数和(自身を除く): 80912212

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 43313, 86626, 173252, 216565, 433130, 866260, 3594979, 7189958, 14379916, 17974895, 35949790, 71899580]

約数ペア:

[(1, 71899580), (2, 35949790), (4, 17974895), (5, 14379916), (10, 7189958), (20, 3594979), (83, 866260), (166, 433130), (332, 216565), (415, 173252), (830, 86626), (1660, 43313)]