17880460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68771}}^1$

素因数の和:68793

約数の個数: 24

約数和(自身を含む): 40437936

約数和(自身を除く): 22557476

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 68771, 137542, 275084, 343855, 687710, 894023, 1375420, 1788046, 3576092, 4470115, 8940230, 17880460]

約数ペア:

[(1, 17880460), (2, 8940230), (4, 4470115), (5, 3576092), (10, 1788046), (13, 1375420), (20, 894023), (26, 687710), (52, 343855), (65, 275084), (130, 137542), (260, 68771)]