19139560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43499}}^1$

素因数の和:43521

約数の個数: 32

約数和(自身を含む): 46980000

約数和(自身を除く): 27840440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 43499, 86998, 173996, 217495, 347992, 434990, 478489, 869980, 956978, 1739960, 1913956, 2392445, 3827912, 4784890, 9569780, 19139560]

約数ペア:

[(1, 19139560), (2, 9569780), (4, 4784890), (5, 3827912), (8, 2392445), (10, 1913956), (11, 1739960), (20, 956978), (22, 869980), (40, 478489), (44, 434990), (55, 347992), (88, 217495), (110, 173996), (220, 86998), (440, 43499)]