20680544872

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{2801}}^1$

素因数の和:3003

約数の個数: 96

約数和(自身を含む): 43318471680

約数和(自身を除く): 22637926808

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 127, 169, 172, 254, 338, 344, 508, 559, 676, 1016, 1118, 1352, 1651, 2236, 2801, 3302, 4472, 5461, 5602, 6604, 7267, 10922, 11204, 13208, 14534, 21463, 21844, 22408, 29068, 36413, 42926, 43688, 58136, 70993, 72826, 85852, 120443, 141986, 145652, 171704, 240886, 283972, 291304, 355727, 473369, 481772, 567944, 711454, 922909, 946738, 963544, 1422908, 1565759, 1845818, 1893476, 2845816, 3131518, 3691636, 3786952, 4624451, 6263036, 7383272, 9248902, 12526072, 15296261, 18497804, 20354867, 30592522, 36995608, 40709734, 60117863, 61185044, 81419468, 120235726, 122370088, 162838936, 198851393, 240471452, 397702786, 480942904, 795405572, 1590811144, 2585068109, 5170136218, 10340272436, 20680544872]

約数ペア:

[(1, 20680544872), (2, 10340272436), (4, 5170136218), (8, 2585068109), (13, 1590811144), (26, 795405572), (43, 480942904), (52, 397702786), (86, 240471452), (104, 198851393), (127, 162838936), (169, 122370088), (172, 120235726), (254, 81419468), (338, 61185044), (344, 60117863), (508, 40709734), (559, 36995608), (676, 30592522), (1016, 20354867), (1118, 18497804), (1352, 15296261), (1651, 12526072), (2236, 9248902), (2801, 7383272), (3302, 6263036), (4472, 4624451), (5461, 3786952), (5602, 3691636), (6604, 3131518), (7267, 2845816), (10922, 1893476), (11204, 1845818), (13208, 1565759), (14534, 1422908), (21463, 963544), (21844, 946738), (22408, 922909), (29068, 711454), (36413, 567944), (42926, 481772), (43688, 473369), (58136, 355727), (70993, 291304), (72826, 283972), (85852, 240886), (120443, 171704), (141986, 145652)]