9989920

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2153}}^1$

素因数の和:2197

約数の個数: 48

約数和(自身を含む): 24426360

約数和(自身を除く): 14436440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2153, 2320, 4306, 4640, 8612, 10765, 17224, 21530, 34448, 43060, 62437, 68896, 86120, 124874, 172240, 249748, 312185, 344480, 499496, 624370, 998992, 1248740, 1997984, 2497480, 4994960, 9989920]

約数ペア:

[(1, 9989920), (2, 4994960), (4, 2497480), (5, 1997984), (8, 1248740), (10, 998992), (16, 624370), (20, 499496), (29, 344480), (32, 312185), (40, 249748), (58, 172240), (80, 124874), (116, 86120), (145, 68896), (160, 62437), (232, 43060), (290, 34448), (464, 21530), (580, 17224), (928, 10765), (1160, 8612), (2153, 4640), (2320, 4306)]