71382020

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{7949}}^1$

素因数の和:8407

約数の個数: 24

約数和(自身を含む): 150255000

約数和(自身を除く): 78872980

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2245, 4490, 7949, 8980, 15898, 31796, 39745, 79490, 158980, 3569101, 7138202, 14276404, 17845505, 35691010, 71382020]

約数ペア:

[(1, 71382020), (2, 35691010), (4, 17845505), (5, 14276404), (10, 7138202), (20, 3569101), (449, 158980), (898, 79490), (1796, 39745), (2245, 31796), (4490, 15898), (7949, 8980)]