20446864

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 20800496

約数列:

[1, 2, 4, 8, 16, 41, 71, 82, 142, 164, 284, 328, 439, 568, 656, 878, 1136, 1756, 2911, 3512, 5822, 7024, 11644, 17999, 23288, 31169, 35998, 46576, 62338, 71996, 124676, 143992, 249352, 287984, 498704, 1277929, 2555858, 5111716, 10223432, 20446864]

約数ペア:

[(1, 20446864), (2, 10223432), (4, 5111716), (8, 2555858), (16, 1277929), (41, 498704), (71, 287984), (82, 249352), (142, 143992), (164, 124676), (284, 71996), (328, 62338), (439, 46576), (568, 35998), (656, 31169), (878, 23288), (1136, 17999), (1756, 11644), (2911, 7024), (3512, 5822)]