81365648

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:145

約数の個数: 160

約数和(自身を含む): 209986560

約数和(自身を除く): 128620912

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 29, 41, 47, 52, 56, 58, 82, 91, 94, 104, 112, 116, 164, 182, 188, 203, 208, 232, 287, 328, 329, 364, 376, 377, 406, 464, 533, 574, 611, 656, 658, 728, 752, 754, 812, 1066, 1148, 1189, 1222, 1316, 1363, 1456, 1508, 1624, 1927, 2132, 2296, 2378, 2444, 2632, 2639, 2726, 3016, 3248, 3731, 3854, 4264, 4277, 4592, 4756, 4888, 5264, 5278, 5452, 6032, 7462, 7708, 8323, 8528, 8554, 9512, 9541, 9776, 10556, 10904, 13489, 14924, 15416, 15457, 16646, 17108, 17719, 19024, 19082, 21112, 21808, 25051, 26978, 29848, 30832, 30914, 33292, 34216, 35438, 38164, 42224, 50102, 53956, 55883, 59696, 61828, 66584, 68432, 70876, 76328, 100204, 107912, 108199, 111766, 123656, 124033, 133168, 141752, 152656, 175357, 200408, 215824, 216398, 223532, 247312, 248066, 283504, 350714, 391181, 400816, 432796, 447064, 496132, 701428, 726479, 782362, 865592, 894128, 992264, 1402856, 1452958, 1564724, 1731184, 1984528, 2805712, 2905916, 3129448, 5085353, 5811832, 6258896, 10170706, 11623664, 20341412, 40682824, 81365648]

約数ペア:

[(1, 81365648), (2, 40682824), (4, 20341412), (7, 11623664), (8, 10170706), (13, 6258896), (14, 5811832), (16, 5085353), (26, 3129448), (28, 2905916), (29, 2805712), (41, 1984528), (47, 1731184), (52, 1564724), (56, 1452958), (58, 1402856), (82, 992264), (91, 894128), (94, 865592), (104, 782362), (112, 726479), (116, 701428), (164, 496132), (182, 447064), (188, 432796), (203, 400816), (208, 391181), (232, 350714), (287, 283504), (328, 248066), (329, 247312), (364, 223532), (376, 216398), (377, 215824), (406, 200408), (464, 175357), (533, 152656), (574, 141752), (611, 133168), (656, 124033), (658, 123656), (728, 111766), (752, 108199), (754, 107912), (812, 100204), (1066, 76328), (1148, 70876), (1189, 68432), (1222, 66584), (1316, 61828), (1363, 59696), (1456, 55883), (1508, 53956), (1624, 50102), (1927, 42224), (2132, 38164), (2296, 35438), (2378, 34216), (2444, 33292), (2632, 30914), (2639, 30832), (2726, 29848), (3016, 26978), (3248, 25051), (3731, 21808), (3854, 21112), (4264, 19082), (4277, 19024), (4592, 17719), (4756, 17108), (4888, 16646), (5264, 15457), (5278, 15416), (5452, 14924), (6032, 13489), (7462, 10904), (7708, 10556), (8323, 9776), (8528, 9541), (8554, 9512)]