81117288

素因数分解:

$2^3\times 3^6\times 7^1\times {\mathrm{1987}}^1$

素因数の和:2018

約数の個数: 112

約数和(自身を含む): 260746080

約数和(自身を除く): 179628792

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 243, 252, 324, 378, 486, 504, 567, 648, 729, 756, 972, 1134, 1458, 1512, 1701, 1944, 1987, 2268, 2916, 3402, 3974, 4536, 5103, 5832, 5961, 6804, 7948, 10206, 11922, 13608, 13909, 15896, 17883, 20412, 23844, 27818, 35766, 40824, 41727, 47688, 53649, 55636, 71532, 83454, 107298, 111272, 125181, 143064, 160947, 166908, 214596, 250362, 321894, 333816, 375543, 429192, 482841, 500724, 643788, 751086, 965682, 1001448, 1126629, 1287576, 1448523, 1502172, 1931364, 2253258, 2897046, 3004344, 3379887, 3862728, 4506516, 5794092, 6759774, 9013032, 10139661, 11588184, 13519548, 20279322, 27039096, 40558644, 81117288]

約数ペア:

[(1, 81117288), (2, 40558644), (3, 27039096), (4, 20279322), (6, 13519548), (7, 11588184), (8, 10139661), (9, 9013032), (12, 6759774), (14, 5794092), (18, 4506516), (21, 3862728), (24, 3379887), (27, 3004344), (28, 2897046), (36, 2253258), (42, 1931364), (54, 1502172), (56, 1448523), (63, 1287576), (72, 1126629), (81, 1001448), (84, 965682), (108, 751086), (126, 643788), (162, 500724), (168, 482841), (189, 429192), (216, 375543), (243, 333816), (252, 321894), (324, 250362), (378, 214596), (486, 166908), (504, 160947), (567, 143064), (648, 125181), (729, 111272), (756, 107298), (972, 83454), (1134, 71532), (1458, 55636), (1512, 53649), (1701, 47688), (1944, 41727), (1987, 40824), (2268, 35766), (2916, 27818), (3402, 23844), (3974, 20412), (4536, 17883), (5103, 15896), (5832, 13909), (5961, 13608), (6804, 11922), (7948, 10206)]