16611320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1$

素因数の和:2028

約数の個数: 64

約数和(自身を含む): 42940800

約数和(自身を除く): 26329480

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 1987, 2090, 3974, 4180, 7948, 8360, 9935, 15896, 19870, 21857, 37753, 39740, 43714, 75506, 79480, 87428, 109285, 151012, 174856, 188765, 218570, 302024, 377530, 415283, 437140, 755060, 830566, 874280, 1510120, 1661132, 2076415, 3322264, 4152830, 8305660, 16611320]

約数ペア:

[(1, 16611320), (2, 8305660), (4, 4152830), (5, 3322264), (8, 2076415), (10, 1661132), (11, 1510120), (19, 874280), (20, 830566), (22, 755060), (38, 437140), (40, 415283), (44, 377530), (55, 302024), (76, 218570), (88, 188765), (95, 174856), (110, 151012), (152, 109285), (190, 87428), (209, 79480), (220, 75506), (380, 43714), (418, 39740), (440, 37753), (760, 21857), (836, 19870), (1045, 15896), (1672, 9935), (1987, 8360), (2090, 7948), (3974, 4180)]