10281800

素因数分解:

$2^3\times 5^2\times {\mathrm{101}}^1\times {\mathrm{509}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 24189300

約数和(自身を除く): 13907500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 200, 202, 404, 505, 509, 808, 1010, 1018, 2020, 2036, 2525, 2545, 4040, 4072, 5050, 5090, 10100, 10180, 12725, 20200, 20360, 25450, 50900, 51409, 101800, 102818, 205636, 257045, 411272, 514090, 1028180, 1285225, 2056360, 2570450, 5140900, 10281800]

約数ペア:

[(1, 10281800), (2, 5140900), (4, 2570450), (5, 2056360), (8, 1285225), (10, 1028180), (20, 514090), (25, 411272), (40, 257045), (50, 205636), (100, 102818), (101, 101800), (200, 51409), (202, 50900), (404, 25450), (505, 20360), (509, 20200), (808, 12725), (1010, 10180), (1018, 10100), (2020, 5090), (2036, 5050), (2525, 4072), (2545, 4040)]