12397720

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1103}}^1$

素因数の和:1395

約数の個数: 32

約数和(自身を含む): 28019520

約数和(自身を除く): 15621800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1103, 1124, 1405, 2206, 2248, 2810, 4412, 5515, 5620, 8824, 11030, 11240, 22060, 44120, 309943, 619886, 1239772, 1549715, 2479544, 3099430, 6198860, 12397720]

約数ペア:

[(1, 12397720), (2, 6198860), (4, 3099430), (5, 2479544), (8, 1549715), (10, 1239772), (20, 619886), (40, 309943), (281, 44120), (562, 22060), (1103, 11240), (1124, 11030), (1405, 8824), (2206, 5620), (2248, 5515), (2810, 4412)]