19280120

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2663}}^1$

素因数の和:2855

約数の個数: 32

約数和(自身を含む): 43636320

約数和(自身を除く): 24356200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 2663, 3620, 5326, 7240, 10652, 13315, 21304, 26630, 53260, 106520, 482003, 964006, 1928012, 2410015, 3856024, 4820030, 9640060, 19280120]

約数ペア:

[(1, 19280120), (2, 9640060), (4, 4820030), (5, 3856024), (8, 2410015), (10, 1928012), (20, 964006), (40, 482003), (181, 106520), (362, 53260), (724, 26630), (905, 21304), (1448, 13315), (1810, 10652), (2663, 7240), (3620, 5326)]