20405270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4139}}^1$

素因数の和:4192

約数の個数: 32

約数和(自身を含む): 40240800

約数和(自身を除く): 19835530

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4139, 4930, 8278, 20695, 41390, 70363, 120031, 140726, 240062, 351815, 600155, 703630, 1200310, 2040527, 4081054, 10202635, 20405270]

約数ペア:

[(1, 20405270), (2, 10202635), (5, 4081054), (10, 2040527), (17, 1200310), (29, 703630), (34, 600155), (58, 351815), (85, 240062), (145, 140726), (170, 120031), (290, 70363), (493, 41390), (986, 20695), (2465, 8278), (4139, 4930)]