15641980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25229}}^1$

素因数の和:25269

約数の個数: 24

約数和(自身を含む): 33909120

約数和(自身を除く): 18267140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 25229, 50458, 100916, 126145, 252290, 504580, 782099, 1564198, 3128396, 3910495, 7820990, 15641980]

約数ペア:

[(1, 15641980), (2, 7820990), (4, 3910495), (5, 3128396), (10, 1564198), (20, 782099), (31, 504580), (62, 252290), (124, 126145), (155, 100916), (310, 50458), (620, 25229)]