70720816

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{260003}}^1$

素因数の和:260028

約数の個数: 20

約数和(自身を含む): 145082232

約数和(自身を除く): 74361416

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 260003, 520006, 1040012, 2080024, 4160048, 4420051, 8840102, 17680204, 35360408, 70720816]

約数ペア:

[(1, 70720816), (2, 35360408), (4, 17680204), (8, 8840102), (16, 4420051), (17, 4160048), (34, 2080024), (68, 1040012), (136, 520006), (272, 260003)]