311939620

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1\times {\mathrm{929}}^1$

素因数の和:1204

約数の個数: 48

約数和(自身を含む): 666207360

約数和(自身を除く): 354267740

約数列:

[1, 2, 4, 5, 10, 20, 103, 163, 206, 326, 412, 515, 652, 815, 929, 1030, 1630, 1858, 2060, 3260, 3716, 4645, 9290, 16789, 18580, 33578, 67156, 83945, 95687, 151427, 167890, 191374, 302854, 335780, 382748, 478435, 605708, 757135, 956870, 1514270, 1913740, 3028540, 15596981, 31193962, 62387924, 77984905, 155969810, 311939620]

約数ペア:

[(1, 311939620), (2, 155969810), (4, 77984905), (5, 62387924), (10, 31193962), (20, 15596981), (103, 3028540), (163, 1913740), (206, 1514270), (326, 956870), (412, 757135), (515, 605708), (652, 478435), (815, 382748), (929, 335780), (1030, 302854), (1630, 191374), (1858, 167890), (2060, 151427), (3260, 95687), (3716, 83945), (4645, 67156), (9290, 33578), (16789, 18580)]