15440740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{110291}}^1$

素因数の和:110307

約数の個数: 24

約数和(自身を含む): 37058112

約数和(自身を除く): 21617372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 110291, 220582, 441164, 551455, 772037, 1102910, 1544074, 2205820, 3088148, 3860185, 7720370, 15440740]

約数ペア:

[(1, 15440740), (2, 7720370), (4, 3860185), (5, 3088148), (7, 2205820), (10, 1544074), (14, 1102910), (20, 772037), (28, 551455), (35, 441164), (70, 220582), (140, 110291)]