19211560

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4663}}^1$

素因数の和:4777

約数の個数: 32

約数和(自身を含む): 43655040

約数和(自身を除く): 24443480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4663, 9326, 18652, 23315, 37304, 46630, 93260, 186520, 480289, 960578, 1921156, 2401445, 3842312, 4802890, 9605780, 19211560]

約数ペア:

[(1, 19211560), (2, 9605780), (4, 4802890), (5, 3842312), (8, 2401445), (10, 1921156), (20, 960578), (40, 480289), (103, 186520), (206, 93260), (412, 46630), (515, 37304), (824, 23315), (1030, 18652), (2060, 9326), (4120, 4663)]