81080100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{90089}}^1$

素因数の和:90109

約数の個数: 54

約数和(自身を含む): 254143890

約数和(自身を除く): 173063790

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 90089, 180178, 270267, 360356, 450445, 540534, 810801, 900890, 1081068, 1351335, 1621602, 1801780, 2252225, 2702670, 3243204, 4054005, 4504450, 5405340, 6756675, 8108010, 9008900, 13513350, 16216020, 20270025, 27026700, 40540050, 81080100]

約数ペア:

[(1, 81080100), (2, 40540050), (3, 27026700), (4, 20270025), (5, 16216020), (6, 13513350), (9, 9008900), (10, 8108010), (12, 6756675), (15, 5405340), (18, 4504450), (20, 4054005), (25, 3243204), (30, 2702670), (36, 2252225), (45, 1801780), (50, 1621602), (60, 1351335), (75, 1081068), (90, 900890), (100, 810801), (150, 540534), (180, 450445), (225, 360356), (300, 270267), (450, 180178), (900, 90089)]