2639120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2999}}^1$

素因数の和:3023

約数の個数: 40

約数和(自身を含む): 6696000

約数和(自身を除く): 4056880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2999, 5998, 11996, 14995, 23992, 29990, 32989, 47984, 59980, 65978, 119960, 131956, 164945, 239920, 263912, 329890, 527824, 659780, 1319560, 2639120]

約数ペア:

[(1, 2639120), (2, 1319560), (4, 659780), (5, 527824), (8, 329890), (10, 263912), (11, 239920), (16, 164945), (20, 131956), (22, 119960), (40, 65978), (44, 59980), (55, 47984), (80, 32989), (88, 29990), (110, 23992), (176, 14995), (220, 11996), (440, 5998), (880, 2999)]