20238800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2663}}^1$

素因数の和:2700

約数の個数: 60

約数和(自身を含む): 51202080

約数和(自身を除く): 30963280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 2663, 3800, 5326, 7600, 10652, 13315, 21304, 26630, 42608, 50597, 53260, 66575, 101194, 106520, 133150, 202388, 213040, 252985, 266300, 404776, 505970, 532600, 809552, 1011940, 1065200, 1264925, 2023880, 2529850, 4047760, 5059700, 10119400, 20238800]

約数ペア:

[(1, 20238800), (2, 10119400), (4, 5059700), (5, 4047760), (8, 2529850), (10, 2023880), (16, 1264925), (19, 1065200), (20, 1011940), (25, 809552), (38, 532600), (40, 505970), (50, 404776), (76, 266300), (80, 252985), (95, 213040), (100, 202388), (152, 133150), (190, 106520), (200, 101194), (304, 66575), (380, 53260), (400, 50597), (475, 42608), (760, 26630), (950, 21304), (1520, 13315), (1900, 10652), (2663, 7600), (3800, 5326)]