15125840

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2663}}^1$

素因数の和:2747

約数の個数: 40

約数和(自身を含む): 35676288

約数和(自身を除く): 20550448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2663, 2840, 5326, 5680, 10652, 13315, 21304, 26630, 42608, 53260, 106520, 189073, 213040, 378146, 756292, 945365, 1512584, 1890730, 3025168, 3781460, 7562920, 15125840]

約数ペア:

[(1, 15125840), (2, 7562920), (4, 3781460), (5, 3025168), (8, 1890730), (10, 1512584), (16, 945365), (20, 756292), (40, 378146), (71, 213040), (80, 189073), (142, 106520), (284, 53260), (355, 42608), (568, 26630), (710, 21304), (1136, 13315), (1420, 10652), (2663, 5680), (2840, 5326)]