18283760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:366

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 28856080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 263, 316, 395, 440, 526, 632, 790, 869, 880, 1052, 1264, 1315, 1580, 1738, 2104, 2630, 2893, 3160, 3476, 4208, 4345, 5260, 5786, 6320, 6952, 8690, 10520, 11572, 13904, 14465, 17380, 20777, 21040, 23144, 28930, 34760, 41554, 46288, 57860, 69520, 83108, 103885, 115720, 166216, 207770, 228547, 231440, 332432, 415540, 457094, 831080, 914188, 1142735, 1662160, 1828376, 2285470, 3656752, 4570940, 9141880, 18283760]

約数ペア:

[(1, 18283760), (2, 9141880), (4, 4570940), (5, 3656752), (8, 2285470), (10, 1828376), (11, 1662160), (16, 1142735), (20, 914188), (22, 831080), (40, 457094), (44, 415540), (55, 332432), (79, 231440), (80, 228547), (88, 207770), (110, 166216), (158, 115720), (176, 103885), (220, 83108), (263, 69520), (316, 57860), (395, 46288), (440, 41554), (526, 34760), (632, 28930), (790, 23144), (869, 21040), (880, 20777), (1052, 17380), (1264, 14465), (1315, 13904), (1580, 11572), (1738, 10520), (2104, 8690), (2630, 6952), (2893, 6320), (3160, 5786), (3476, 5260), (4208, 4345)]