81219996

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1753}}^1$

素因数の和:1793

約数の個数: 120

約数和(自身を含む): 249587184

約数和(自身を除く): 168367188

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 27, 33, 36, 39, 44, 52, 54, 66, 78, 81, 99, 108, 117, 132, 143, 156, 162, 198, 234, 286, 297, 324, 351, 396, 429, 468, 572, 594, 702, 858, 891, 1053, 1188, 1287, 1404, 1716, 1753, 1782, 2106, 2574, 3506, 3564, 3861, 4212, 5148, 5259, 7012, 7722, 10518, 11583, 15444, 15777, 19283, 21036, 22789, 23166, 31554, 38566, 45578, 46332, 47331, 57849, 63108, 68367, 77132, 91156, 94662, 115698, 136734, 141993, 173547, 189324, 205101, 231396, 250679, 273468, 283986, 347094, 410202, 501358, 520641, 567972, 615303, 694188, 752037, 820404, 1002716, 1041282, 1230606, 1504074, 1561923, 1845909, 2082564, 2256111, 2461212, 3008148, 3123846, 3691818, 4512222, 6247692, 6768333, 7383636, 9024444, 13536666, 20304999, 27073332, 40609998, 81219996]

約数ペア:

[(1, 81219996), (2, 40609998), (3, 27073332), (4, 20304999), (6, 13536666), (9, 9024444), (11, 7383636), (12, 6768333), (13, 6247692), (18, 4512222), (22, 3691818), (26, 3123846), (27, 3008148), (33, 2461212), (36, 2256111), (39, 2082564), (44, 1845909), (52, 1561923), (54, 1504074), (66, 1230606), (78, 1041282), (81, 1002716), (99, 820404), (108, 752037), (117, 694188), (132, 615303), (143, 567972), (156, 520641), (162, 501358), (198, 410202), (234, 347094), (286, 283986), (297, 273468), (324, 250679), (351, 231396), (396, 205101), (429, 189324), (468, 173547), (572, 141993), (594, 136734), (702, 115698), (858, 94662), (891, 91156), (1053, 77132), (1188, 68367), (1287, 63108), (1404, 57849), (1716, 47331), (1753, 46332), (1782, 45578), (2106, 38566), (2574, 31554), (3506, 23166), (3564, 22789), (3861, 21036), (4212, 19283), (5148, 15777), (5259, 15444), (7012, 11583), (7722, 10518)]