158399120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179999}}^1$

素因数の和:180023

約数の個数: 40

約数和(自身を含む): 401760000

約数和(自身を除く): 243360880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 179999, 359998, 719996, 899995, 1439992, 1799990, 1979989, 2879984, 3599980, 3959978, 7199960, 7919956, 9899945, 14399920, 15839912, 19799890, 31679824, 39599780, 79199560, 158399120]

約数ペア:

[(1, 158399120), (2, 79199560), (4, 39599780), (5, 31679824), (8, 19799890), (10, 15839912), (11, 14399920), (16, 9899945), (20, 7919956), (22, 7199960), (40, 3959978), (44, 3599980), (55, 2879984), (80, 1979989), (88, 1799990), (110, 1439992), (176, 899995), (220, 719996), (440, 359998), (880, 179999)]