205305280

素因数分解:

$2^6\times 5^1\times {\mathrm{641579}}^1$

素因数の和:641596

約数の個数: 28

約数和(自身を含む): 488883960

約数和(自身を除く): 283578680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 641579, 1283158, 2566316, 3207895, 5132632, 6415790, 10265264, 12831580, 20530528, 25663160, 41061056, 51326320, 102652640, 205305280]

約数ペア:

[(1, 205305280), (2, 102652640), (4, 51326320), (5, 41061056), (8, 25663160), (10, 20530528), (16, 12831580), (20, 10265264), (32, 6415790), (40, 5132632), (64, 3207895), (80, 2566316), (160, 1283158), (320, 641579)]