2018180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 4596480

約数和(自身を除く): 2578300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 113, 188, 190, 226, 235, 380, 452, 470, 565, 893, 940, 1130, 1786, 2147, 2260, 3572, 4294, 4465, 5311, 8588, 8930, 10622, 10735, 17860, 21244, 21470, 26555, 42940, 53110, 100909, 106220, 201818, 403636, 504545, 1009090, 2018180]

約数ペア:

[(1, 2018180), (2, 1009090), (4, 504545), (5, 403636), (10, 201818), (19, 106220), (20, 100909), (38, 53110), (47, 42940), (76, 26555), (94, 21470), (95, 21244), (113, 17860), (188, 10735), (190, 10622), (226, 8930), (235, 8588), (380, 5311), (452, 4465), (470, 4294), (565, 3572), (893, 2260), (940, 2147), (1130, 1786)]