257500510

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{2339}}^1$

素因数の和:2556

約数の個数: 32

約数和(自身を含む): 472586400

約数和(自身を除く): 215085890

約数列:

[1, 2, 5, 10, 101, 109, 202, 218, 505, 545, 1010, 1090, 2339, 4678, 11009, 11695, 22018, 23390, 55045, 110090, 236239, 254951, 472478, 509902, 1181195, 1274755, 2362390, 2549510, 25750051, 51500102, 128750255, 257500510]

約数ペア:

[(1, 257500510), (2, 128750255), (5, 51500102), (10, 25750051), (101, 2549510), (109, 2362390), (202, 1274755), (218, 1181195), (505, 509902), (545, 472478), (1010, 254951), (1090, 236239), (2339, 110090), (4678, 55045), (11009, 23390), (11695, 22018)]