20017191710

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1\times {\mathrm{249187}}^1$

素因数の和:249500

約数の個数: 32

約数和(自身を含む): 37408102560

約数和(自身を除く): 17390910850

約数列:

[1, 2, 5, 10, 29, 58, 145, 277, 290, 554, 1385, 2770, 8033, 16066, 40165, 80330, 249187, 498374, 1245935, 2491870, 7226423, 14452846, 36132115, 69024799, 72264230, 138049598, 345123995, 690247990, 2001719171, 4003438342, 10008595855, 20017191710]

約数ペア:

[(1, 20017191710), (2, 10008595855), (5, 4003438342), (10, 2001719171), (29, 690247990), (58, 345123995), (145, 138049598), (277, 72264230), (290, 69024799), (554, 36132115), (1385, 14452846), (2770, 7226423), (8033, 2491870), (16066, 1245935), (40165, 498374), (80330, 249187)]