39878540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{153379}}^1$

素因数の和:153401

約数の個数: 24

約数和(自身を含む): 90187440

約数和(自身を除く): 50308900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 153379, 306758, 613516, 766895, 1533790, 1993927, 3067580, 3987854, 7975708, 9969635, 19939270, 39878540]

約数ペア:

[(1, 39878540), (2, 19939270), (4, 9969635), (5, 7975708), (10, 3987854), (13, 3067580), (20, 1993927), (26, 1533790), (52, 766895), (65, 613516), (130, 306758), (260, 153379)]