20132728

素因数分解:

$2^3\times 7^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:90

約数の個数: 128

約数和(自身を含む): 51840000

約数和(自身を除く): 31707272

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 29, 44, 46, 49, 56, 58, 77, 88, 92, 98, 116, 154, 161, 184, 196, 203, 232, 253, 308, 319, 322, 343, 392, 406, 506, 539, 616, 638, 644, 667, 686, 812, 1012, 1078, 1127, 1276, 1288, 1334, 1372, 1421, 1624, 1771, 2024, 2156, 2233, 2254, 2552, 2668, 2744, 2842, 3542, 3773, 4312, 4466, 4508, 4669, 5336, 5684, 7084, 7337, 7546, 7889, 8932, 9016, 9338, 9947, 11368, 12397, 14168, 14674, 15092, 15631, 15778, 17864, 18676, 19894, 24794, 29348, 30184, 31262, 31556, 32683, 37352, 39788, 49588, 51359, 58696, 62524, 63112, 65366, 79576, 86779, 99176, 102718, 109417, 125048, 130732, 173558, 205436, 218834, 228781, 261464, 347116, 359513, 410872, 437668, 457562, 694232, 719026, 875336, 915124, 1438052, 1830248, 2516591, 2876104, 5033182, 10066364, 20132728]

約数ペア:

[(1, 20132728), (2, 10066364), (4, 5033182), (7, 2876104), (8, 2516591), (11, 1830248), (14, 1438052), (22, 915124), (23, 875336), (28, 719026), (29, 694232), (44, 457562), (46, 437668), (49, 410872), (56, 359513), (58, 347116), (77, 261464), (88, 228781), (92, 218834), (98, 205436), (116, 173558), (154, 130732), (161, 125048), (184, 109417), (196, 102718), (203, 99176), (232, 86779), (253, 79576), (308, 65366), (319, 63112), (322, 62524), (343, 58696), (392, 51359), (406, 49588), (506, 39788), (539, 37352), (616, 32683), (638, 31556), (644, 31262), (667, 30184), (686, 29348), (812, 24794), (1012, 19894), (1078, 18676), (1127, 17864), (1276, 15778), (1288, 15631), (1334, 15092), (1372, 14674), (1421, 14168), (1624, 12397), (1771, 11368), (2024, 9947), (2156, 9338), (2233, 9016), (2254, 8932), (2552, 7889), (2668, 7546), (2744, 7337), (2842, 7084), (3542, 5684), (3773, 5336), (4312, 4669), (4466, 4508)]