81253084

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{20749}}^1$

素因数の和:20853

約数の個数: 24

約数和(自身を含む): 156870000

約数和(自身を除く): 75616916

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 20749, 41498, 82996, 228239, 456478, 912956, 1846661, 3693322, 7386644, 20313271, 40626542, 81253084]

約数ペア:

[(1, 81253084), (2, 40626542), (4, 20313271), (11, 7386644), (22, 3693322), (44, 1846661), (89, 912956), (178, 456478), (356, 228239), (979, 82996), (1958, 41498), (3916, 20749)]