19600000040

素因数分解:

$2^3\times 5^1\times {\mathrm{490000001}}^1$

素因数の和:490000012

約数の個数: 16

約数和(自身を含む): 44100000180

約数和(自身を除く): 24500000140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 490000001, 980000002, 1960000004, 2450000005, 3920000008, 4900000010, 9800000020, 19600000040]

約数ペア:

[(1, 19600000040), (2, 9800000020), (4, 4900000010), (5, 3920000008), (8, 2450000005), (10, 1960000004), (20, 980000002), (40, 490000001)]