19489660

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9461}}^1$

素因数の和:9573

約数の個数: 24

約数和(自身を含む): 41330016

約数和(自身を除く): 21840356

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9461, 18922, 37844, 47305, 94610, 189220, 974483, 1948966, 3897932, 4872415, 9744830, 19489660]

約数ペア:

[(1, 19489660), (2, 9744830), (4, 4872415), (5, 3897932), (10, 1948966), (20, 974483), (103, 189220), (206, 94610), (412, 47305), (515, 37844), (1030, 18922), (2060, 9461)]