168772660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{172217}}^1$

素因数の和:172240

約数の個数: 36

約数和(自身を含む): 412289892

約数和(自身を除く): 243517232

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 172217, 344434, 688868, 861085, 1205519, 1722170, 2411038, 3444340, 4822076, 6027595, 8438633, 12055190, 16877266, 24110380, 33754532, 42193165, 84386330, 168772660]

約数ペア:

[(1, 168772660), (2, 84386330), (4, 42193165), (5, 33754532), (7, 24110380), (10, 16877266), (14, 12055190), (20, 8438633), (28, 6027595), (35, 4822076), (49, 3444340), (70, 2411038), (98, 1722170), (140, 1205519), (196, 861085), (245, 688868), (490, 344434), (980, 172217)]