256460740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{312757}}^1$

素因数の和:312807

約数の個数: 24

約数和(自身を含む): 551705112

約数和(自身を除く): 295244372

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 312757, 625514, 1251028, 1563785, 3127570, 6255140, 12823037, 25646074, 51292148, 64115185, 128230370, 256460740]

約数ペア:

[(1, 256460740), (2, 128230370), (4, 64115185), (5, 51292148), (10, 25646074), (20, 12823037), (41, 6255140), (82, 3127570), (164, 1563785), (205, 1251028), (410, 625514), (820, 312757)]