65660260

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{2543}}^1$

素因数の和:3843

約数の個数: 24

約数和(自身を含む): 138047616

約数和(自身を除く): 72387356

約数列:

[1, 2, 4, 5, 10, 20, 1291, 2543, 2582, 5086, 5164, 6455, 10172, 12715, 12910, 25430, 25820, 50860, 3283013, 6566026, 13132052, 16415065, 32830130, 65660260]

約数ペア:

[(1, 65660260), (2, 32830130), (4, 16415065), (5, 13132052), (10, 6566026), (20, 3283013), (1291, 50860), (2543, 25820), (2582, 25430), (5086, 12910), (5164, 12715), (6455, 10172)]