1776940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 4191264

約数和(自身を除く): 2414324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 197, 205, 220, 394, 410, 451, 788, 820, 902, 985, 1804, 1970, 2167, 2255, 3940, 4334, 4510, 8077, 8668, 9020, 10835, 16154, 21670, 32308, 40385, 43340, 80770, 88847, 161540, 177694, 355388, 444235, 888470, 1776940]

約数ペア:

[(1, 1776940), (2, 888470), (4, 444235), (5, 355388), (10, 177694), (11, 161540), (20, 88847), (22, 80770), (41, 43340), (44, 40385), (55, 32308), (82, 21670), (110, 16154), (164, 10835), (197, 9020), (205, 8668), (220, 8077), (394, 4510), (410, 4334), (451, 3940), (788, 2255), (820, 2167), (902, 1970), (985, 1804)]