28839020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205993}}^1$

素因数の和:206009

約数の個数: 24

約数和(自身を含む): 69213984

約数和(自身を除く): 40374964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205993, 411986, 823972, 1029965, 1441951, 2059930, 2883902, 4119860, 5767804, 7209755, 14419510, 28839020]

約数ペア:

[(1, 28839020), (2, 14419510), (4, 7209755), (5, 5767804), (7, 4119860), (10, 2883902), (14, 2059930), (20, 1441951), (28, 1029965), (35, 823972), (70, 411986), (140, 205993)]