20693556

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^3$

素因数の和:80

約数の個数: 120

約数和(自身を含む): 61898760

約数和(自身を除く): 41205204

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 27, 34, 36, 39, 51, 52, 54, 68, 78, 81, 102, 108, 117, 153, 156, 162, 204, 221, 234, 289, 306, 324, 351, 442, 459, 468, 578, 612, 663, 702, 867, 884, 918, 1053, 1156, 1326, 1377, 1404, 1734, 1836, 1989, 2106, 2601, 2652, 2754, 3468, 3757, 3978, 4212, 4913, 5202, 5508, 5967, 7514, 7803, 7956, 9826, 10404, 11271, 11934, 14739, 15028, 15606, 17901, 19652, 22542, 23409, 23868, 29478, 31212, 33813, 35802, 44217, 45084, 46818, 58956, 63869, 67626, 71604, 88434, 93636, 101439, 127738, 132651, 135252, 176868, 191607, 202878, 255476, 265302, 304317, 383214, 397953, 405756, 530604, 574821, 608634, 766428, 795906, 1149642, 1217268, 1591812, 1724463, 2299284, 3448926, 5173389, 6897852, 10346778, 20693556]

約数ペア:

[(1, 20693556), (2, 10346778), (3, 6897852), (4, 5173389), (6, 3448926), (9, 2299284), (12, 1724463), (13, 1591812), (17, 1217268), (18, 1149642), (26, 795906), (27, 766428), (34, 608634), (36, 574821), (39, 530604), (51, 405756), (52, 397953), (54, 383214), (68, 304317), (78, 265302), (81, 255476), (102, 202878), (108, 191607), (117, 176868), (153, 135252), (156, 132651), (162, 127738), (204, 101439), (221, 93636), (234, 88434), (289, 71604), (306, 67626), (324, 63869), (351, 58956), (442, 46818), (459, 45084), (468, 44217), (578, 35802), (612, 33813), (663, 31212), (702, 29478), (867, 23868), (884, 23409), (918, 22542), (1053, 19652), (1156, 17901), (1326, 15606), (1377, 15028), (1404, 14739), (1734, 11934), (1836, 11271), (1989, 10404), (2106, 9826), (2601, 7956), (2652, 7803), (2754, 7514), (3468, 5967), (3757, 5508), (3978, 5202), (4212, 4913)]