9897800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{409}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 25356450

約数和(自身を除く): 15458650

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 121, 200, 220, 242, 275, 409, 440, 484, 550, 605, 818, 968, 1100, 1210, 1636, 2045, 2200, 2420, 3025, 3272, 4090, 4499, 4840, 6050, 8180, 8998, 10225, 12100, 16360, 17996, 20450, 22495, 24200, 35992, 40900, 44990, 49489, 81800, 89980, 98978, 112475, 179960, 197956, 224950, 247445, 395912, 449900, 494890, 899800, 989780, 1237225, 1979560, 2474450, 4948900, 9897800]

約数ペア:

[(1, 9897800), (2, 4948900), (4, 2474450), (5, 1979560), (8, 1237225), (10, 989780), (11, 899800), (20, 494890), (22, 449900), (25, 395912), (40, 247445), (44, 224950), (50, 197956), (55, 179960), (88, 112475), (100, 98978), (110, 89980), (121, 81800), (200, 49489), (220, 44990), (242, 40900), (275, 35992), (409, 24200), (440, 22495), (484, 20450), (550, 17996), (605, 16360), (818, 12100), (968, 10225), (1100, 8998), (1210, 8180), (1636, 6050), (2045, 4840), (2200, 4499), (2420, 4090), (3025, 3272)]