81209880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{225583}}^1$

素因数の和:225600

約数の個数: 48

約数和(自身を含む): 263933280

約数和(自身を除く): 182723400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 225583, 451166, 676749, 902332, 1127915, 1353498, 1804664, 2030247, 2255830, 2706996, 3383745, 4060494, 4511660, 5413992, 6767490, 8120988, 9023320, 10151235, 13534980, 16241976, 20302470, 27069960, 40604940, 81209880]

約数ペア:

[(1, 81209880), (2, 40604940), (3, 27069960), (4, 20302470), (5, 16241976), (6, 13534980), (8, 10151235), (9, 9023320), (10, 8120988), (12, 6767490), (15, 5413992), (18, 4511660), (20, 4060494), (24, 3383745), (30, 2706996), (36, 2255830), (40, 2030247), (45, 1804664), (60, 1353498), (72, 1127915), (90, 902332), (120, 676749), (180, 451166), (360, 225583)]