208712740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{613861}}^1$

素因数の和:613887

約数の個数: 24

約数和(自身を含む): 464079672

約数和(自身を除く): 255366932

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 613861, 1227722, 2455444, 3069305, 6138610, 10435637, 12277220, 20871274, 41742548, 52178185, 104356370, 208712740]

約数ペア:

[(1, 208712740), (2, 104356370), (4, 52178185), (5, 41742548), (10, 20871274), (17, 12277220), (20, 10435637), (34, 6138610), (68, 3069305), (85, 2455444), (170, 1227722), (340, 613861)]