90878864

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{79999}}^1$

素因数の和:80078

約数の個数: 20

約数和(自身を含む): 178560000

約数和(自身を除く): 87681136

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 79999, 159998, 319996, 639992, 1279984, 5679929, 11359858, 22719716, 45439432, 90878864]

約数ペア:

[(1, 90878864), (2, 45439432), (4, 22719716), (8, 11359858), (16, 5679929), (71, 1279984), (142, 639992), (284, 319996), (568, 159998), (1136, 79999)]