209519240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{748283}}^1$

素因数の和:748301

約数の個数: 32

約数和(自身を含む): 538764480

約数和(自身を除く): 329245240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 748283, 1496566, 2993132, 3741415, 5237981, 5986264, 7482830, 10475962, 14965660, 20951924, 26189905, 29931320, 41903848, 52379810, 104759620, 209519240]

約数ペア:

[(1, 209519240), (2, 104759620), (4, 52379810), (5, 41903848), (7, 29931320), (8, 26189905), (10, 20951924), (14, 14965660), (20, 10475962), (28, 7482830), (35, 5986264), (40, 5237981), (56, 3741415), (70, 2993132), (140, 1496566), (280, 748283)]