7919120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{8999}}^1$

素因数の和:9023

約数の個数: 40

約数和(自身を含む): 20088000

約数和(自身を除く): 12168880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 8999, 17998, 35996, 44995, 71992, 89990, 98989, 143984, 179980, 197978, 359960, 395956, 494945, 719920, 791912, 989890, 1583824, 1979780, 3959560, 7919120]

約数ペア:

[(1, 7919120), (2, 3959560), (4, 1979780), (5, 1583824), (8, 989890), (10, 791912), (11, 719920), (16, 494945), (20, 395956), (22, 359960), (40, 197978), (44, 179980), (55, 143984), (80, 98989), (88, 89990), (110, 71992), (176, 44995), (220, 35996), (440, 17998), (880, 8999)]