28304920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101089}}^1$

素因数の和:101107

約数の個数: 32

約数和(自身を含む): 72784800

約数和(自身を除く): 44479880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 101089, 202178, 404356, 505445, 707623, 808712, 1010890, 1415246, 2021780, 2830492, 3538115, 4043560, 5660984, 7076230, 14152460, 28304920]

約数ペア:

[(1, 28304920), (2, 14152460), (4, 7076230), (5, 5660984), (7, 4043560), (8, 3538115), (10, 2830492), (14, 2021780), (20, 1415246), (28, 1010890), (35, 808712), (40, 707623), (56, 505445), (70, 404356), (140, 202178), (280, 101089)]