20642260

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{3673}}^1$

素因数の和:3963

約数の個数: 24

約数和(自身を含む): 43514856

約数和(自身を除く): 22872596

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 3673, 5620, 7346, 14692, 18365, 36730, 73460, 1032113, 2064226, 4128452, 5160565, 10321130, 20642260]

約数ペア:

[(1, 20642260), (2, 10321130), (4, 5160565), (5, 4128452), (10, 2064226), (20, 1032113), (281, 73460), (562, 36730), (1124, 18365), (1405, 14692), (2810, 7346), (3673, 5620)]