87431816

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{642881}}^1$

素因数の和:642904

約数の個数: 16

約数和(自身を含む): 173578140

約数和(自身を除く): 86146324

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 642881, 1285762, 2571524, 5143048, 10928977, 21857954, 43715908, 87431816]

約数ペア:

[(1, 87431816), (2, 43715908), (4, 21857954), (8, 10928977), (17, 5143048), (34, 2571524), (68, 1285762), (136, 642881)]