16781870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1609}}^1$

素因数の和:1772

約数の個数: 32

約数和(自身を含む): 34776000

約数和(自身を除く): 17994130

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 1609, 2086, 3218, 5215, 8045, 10430, 11263, 16090, 22526, 56315, 112630, 239741, 479482, 1198705, 1678187, 2397410, 3356374, 8390935, 16781870]

約数ペア:

[(1, 16781870), (2, 8390935), (5, 3356374), (7, 2397410), (10, 1678187), (14, 1198705), (35, 479482), (70, 239741), (149, 112630), (298, 56315), (745, 22526), (1043, 16090), (1490, 11263), (1609, 10430), (2086, 8045), (3218, 5215)]