213278120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4447}}^1$

素因数の和:4578

約数の個数: 64

約数和(自身を含む): 528422400

約数和(自身を除く): 315144280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 436, 440, 545, 872, 1090, 1199, 2180, 2398, 4360, 4447, 4796, 5995, 8894, 9592, 11990, 17788, 22235, 23980, 35576, 44470, 47960, 48917, 88940, 97834, 177880, 195668, 244585, 391336, 484723, 489170, 969446, 978340, 1938892, 1956680, 2423615, 3877784, 4847230, 5331953, 9694460, 10663906, 19388920, 21327812, 26659765, 42655624, 53319530, 106639060, 213278120]

約数ペア:

[(1, 213278120), (2, 106639060), (4, 53319530), (5, 42655624), (8, 26659765), (10, 21327812), (11, 19388920), (20, 10663906), (22, 9694460), (40, 5331953), (44, 4847230), (55, 3877784), (88, 2423615), (109, 1956680), (110, 1938892), (218, 978340), (220, 969446), (436, 489170), (440, 484723), (545, 391336), (872, 244585), (1090, 195668), (1199, 177880), (2180, 97834), (2398, 88940), (4360, 48917), (4447, 47960), (4796, 44470), (5995, 35576), (8894, 23980), (9592, 22235), (11990, 17788)]