28939340

素因数分解:

$2^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{2543}}^1$

素因数の和:3121

約数の個数: 24

約数和(自身を含む): 60903360

約数和(自身を除く): 31964020

約数列:

[1, 2, 4, 5, 10, 20, 569, 1138, 2276, 2543, 2845, 5086, 5690, 10172, 11380, 12715, 25430, 50860, 1446967, 2893934, 5787868, 7234835, 14469670, 28939340]

約数ペア:

[(1, 28939340), (2, 14469670), (4, 7234835), (5, 5787868), (10, 2893934), (20, 1446967), (569, 50860), (1138, 25430), (2276, 12715), (2543, 11380), (2845, 10172), (5086, 5690)]