20831360

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^2\times {\mathrm{269}}^1$

素因数の和:310

約数の個数: 96

約数和(自身を含む): 54942300

約数和(自身を除く): 34110940

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 269, 320, 352, 440, 484, 538, 605, 640, 704, 880, 968, 1076, 1210, 1345, 1408, 1760, 1936, 2152, 2420, 2690, 2959, 3520, 3872, 4304, 4840, 5380, 5918, 7040, 7744, 8608, 9680, 10760, 11836, 14795, 15488, 17216, 19360, 21520, 23672, 29590, 32549, 34432, 38720, 43040, 47344, 59180, 65098, 77440, 86080, 94688, 118360, 130196, 162745, 172160, 189376, 236720, 260392, 325490, 378752, 473440, 520784, 650980, 946880, 1041568, 1301960, 1893760, 2083136, 2603920, 4166272, 5207840, 10415680, 20831360]

約数ペア:

[(1, 20831360), (2, 10415680), (4, 5207840), (5, 4166272), (8, 2603920), (10, 2083136), (11, 1893760), (16, 1301960), (20, 1041568), (22, 946880), (32, 650980), (40, 520784), (44, 473440), (55, 378752), (64, 325490), (80, 260392), (88, 236720), (110, 189376), (121, 172160), (128, 162745), (160, 130196), (176, 118360), (220, 94688), (242, 86080), (269, 77440), (320, 65098), (352, 59180), (440, 47344), (484, 43040), (538, 38720), (605, 34432), (640, 32549), (704, 29590), (880, 23672), (968, 21520), (1076, 19360), (1210, 17216), (1345, 15488), (1408, 14795), (1760, 11836), (1936, 10760), (2152, 9680), (2420, 8608), (2690, 7744), (2959, 7040), (3520, 5918), (3872, 5380), (4304, 4840)]