268752920

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{66523}}^1$

素因数の和:66635

約数の個数: 32

約数和(自身を含む): 610690320

約数和(自身を除く): 341937400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 66523, 133046, 266092, 332615, 532184, 665230, 1330460, 2660920, 6718823, 13437646, 26875292, 33594115, 53750584, 67188230, 134376460, 268752920]

約数ペア:

[(1, 268752920), (2, 134376460), (4, 67188230), (5, 53750584), (8, 33594115), (10, 26875292), (20, 13437646), (40, 6718823), (101, 2660920), (202, 1330460), (404, 665230), (505, 532184), (808, 332615), (1010, 266092), (2020, 133046), (4040, 66523)]