208022420

素因数分解:

$2^2\times 5^1\times {\mathrm{2939}}^1\times {\mathrm{3539}}^1$

素因数の和:6487

約数の個数: 24

約数和(自身を含む): 437119200

約数和(自身を除く): 229096780

約数列:

[1, 2, 4, 5, 10, 20, 2939, 3539, 5878, 7078, 11756, 14156, 14695, 17695, 29390, 35390, 58780, 70780, 10401121, 20802242, 41604484, 52005605, 104011210, 208022420]

約数ペア:

[(1, 208022420), (2, 104011210), (4, 52005605), (5, 41604484), (10, 20802242), (20, 10401121), (2939, 70780), (3539, 58780), (5878, 35390), (7078, 29390), (11756, 17695), (14156, 14695)]