1721080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2531}}^1$

素因数の和:2559

約数の個数: 32

約数和(自身を含む): 4101840

約数和(自身を除く): 2380760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 2531, 5062, 10124, 12655, 20248, 25310, 43027, 50620, 86054, 101240, 172108, 215135, 344216, 430270, 860540, 1721080]

約数ペア:

[(1, 1721080), (2, 860540), (4, 430270), (5, 344216), (8, 215135), (10, 172108), (17, 101240), (20, 86054), (34, 50620), (40, 43027), (68, 25310), (85, 20248), (136, 12655), (170, 10124), (340, 5062), (680, 2531)]