22781560

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{5639}}^1$

素因数の和:5751

約数の個数: 32

約数和(自身を含む): 51775200

約数和(自身を除く): 28993640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 5639, 11278, 22556, 28195, 45112, 56390, 112780, 225560, 569539, 1139078, 2278156, 2847695, 4556312, 5695390, 11390780, 22781560]

約数ペア:

[(1, 22781560), (2, 11390780), (4, 5695390), (5, 4556312), (8, 2847695), (10, 2278156), (20, 1139078), (40, 569539), (101, 225560), (202, 112780), (404, 56390), (505, 45112), (808, 28195), (1010, 22556), (2020, 11278), (4040, 5639)]