19874620

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{6581}}^1$

素因数の和:6741

約数の個数: 24

約数和(自身を含む): 42019488

約数和(自身を除く): 22144868

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 6581, 13162, 26324, 32905, 65810, 131620, 993731, 1987462, 3974924, 4968655, 9937310, 19874620]

約数ペア:

[(1, 19874620), (2, 9937310), (4, 4968655), (5, 3974924), (10, 1987462), (20, 993731), (151, 131620), (302, 65810), (604, 32905), (755, 26324), (1510, 13162), (3020, 6581)]