145207780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{102259}}^1$

素因数の和:102339

約数の個数: 24

約数和(自身を含む): 309234240

約数和(自身を除く): 164026460

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 102259, 204518, 409036, 511295, 1022590, 2045180, 7260389, 14520778, 29041556, 36301945, 72603890, 145207780]

約数ペア:

[(1, 145207780), (2, 72603890), (4, 36301945), (5, 29041556), (10, 14520778), (20, 7260389), (71, 2045180), (142, 1022590), (284, 511295), (355, 409036), (710, 204518), (1420, 102259)]