28812920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13591}}^1$

素因数の和:13655

約数の個数: 32

約数和(自身を含む): 66057120

約数和(自身を除く): 37244200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 13591, 27182, 54364, 67955, 108728, 135910, 271820, 543640, 720323, 1440646, 2881292, 3601615, 5762584, 7203230, 14406460, 28812920]

約数ペア:

[(1, 28812920), (2, 14406460), (4, 7203230), (5, 5762584), (8, 3601615), (10, 2881292), (20, 1440646), (40, 720323), (53, 543640), (106, 271820), (212, 135910), (265, 108728), (424, 67955), (530, 54364), (1060, 27182), (2120, 13591)]