8100200

素因数分解:

$2^3\times 5^2\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 19066860

約数和(自身を除く): 10966660

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 200, 202, 401, 404, 505, 802, 808, 1010, 1604, 2005, 2020, 2525, 3208, 4010, 4040, 5050, 8020, 10025, 10100, 16040, 20050, 20200, 40100, 40501, 80200, 81002, 162004, 202505, 324008, 405010, 810020, 1012525, 1620040, 2025050, 4050100, 8100200]

約数ペア:

[(1, 8100200), (2, 4050100), (4, 2025050), (5, 1620040), (8, 1012525), (10, 810020), (20, 405010), (25, 324008), (40, 202505), (50, 162004), (100, 81002), (101, 80200), (200, 40501), (202, 40100), (401, 20200), (404, 20050), (505, 16040), (802, 10100), (808, 10025), (1010, 8020), (1604, 5050), (2005, 4040), (2020, 4010), (2525, 3208)]