81491792

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{32441}}^1$

素因数の和:32606

約数の個数: 20

約数和(自身を含む): 158900916

約数和(自身を除く): 77409124

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 32441, 64882, 129764, 259528, 519056, 5093237, 10186474, 20372948, 40745896, 81491792]

約数ペア:

[(1, 81491792), (2, 40745896), (4, 20372948), (8, 10186474), (16, 5093237), (157, 519056), (314, 259528), (628, 129764), (1256, 64882), (2512, 32441)]