655768220

素因数分解:

$2^2\times 5^1\times {\mathrm{2557}}^1\times {\mathrm{12823}}^1$

素因数の和:15389

約数の個数: 24

約数和(自身を含む): 1377759264

約数和(自身を除く): 721991044

約数列:

[1, 2, 4, 5, 10, 20, 2557, 5114, 10228, 12785, 12823, 25570, 25646, 51140, 51292, 64115, 128230, 256460, 32788411, 65576822, 131153644, 163942055, 327884110, 655768220]

約数ペア:

[(1, 655768220), (2, 327884110), (4, 163942055), (5, 131153644), (10, 65576822), (20, 32788411), (2557, 256460), (5114, 128230), (10228, 64115), (12785, 51292), (12823, 51140), (25570, 25646)]