71204428

素因数分解:

$2^2\times {\mathrm{37}}^2\times {\mathrm{13003}}^1$

素因数の和:13081

約数の個数: 18

約数和(自身を含む): 128076396

約数和(自身を除く): 56871968

約数列:

[1, 2, 4, 37, 74, 148, 1369, 2738, 5476, 13003, 26006, 52012, 481111, 962222, 1924444, 17801107, 35602214, 71204428]

約数ペア:

[(1, 71204428), (2, 35602214), (4, 17801107), (37, 1924444), (74, 962222), (148, 481111), (1369, 52012), (2738, 26006), (5476, 13003)]