87131740

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{52489}}^1$

素因数の和:52581

約数の個数: 24

約数和(自身を含む): 185184720

約数和(自身を除く): 98052980

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 52489, 104978, 209956, 262445, 524890, 1049780, 4356587, 8713174, 17426348, 21782935, 43565870, 87131740]

約数ペア:

[(1, 87131740), (2, 43565870), (4, 21782935), (5, 17426348), (10, 8713174), (20, 4356587), (83, 1049780), (166, 524890), (332, 262445), (415, 209956), (830, 104978), (1660, 52489)]