280042540

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^2\times {\mathrm{1223}}^1$

素因数の和:1446

約数の個数: 36

約数和(自身を含む): 594122256

約数和(自身を除く): 314079716

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 1223, 2140, 2446, 4892, 6115, 11449, 12230, 22898, 24460, 45796, 57245, 114490, 130861, 228980, 261722, 523444, 654305, 1308610, 2617220, 14002127, 28004254, 56008508, 70010635, 140021270, 280042540]

約数ペア:

[(1, 280042540), (2, 140021270), (4, 70010635), (5, 56008508), (10, 28004254), (20, 14002127), (107, 2617220), (214, 1308610), (428, 654305), (535, 523444), (1070, 261722), (1223, 228980), (2140, 130861), (2446, 114490), (4892, 57245), (6115, 45796), (11449, 24460), (12230, 22898)]