81387840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4987}}^1$

素因数の和:5024

約数の個数: 112

約数和(自身を含む): 273661632

約数和(自身を除く): 192273792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 408, 480, 510, 544, 680, 816, 960, 1020, 1088, 1360, 1632, 2040, 2720, 3264, 4080, 4987, 5440, 8160, 9974, 14961, 16320, 19948, 24935, 29922, 39896, 49870, 59844, 74805, 79792, 84779, 99740, 119688, 149610, 159584, 169558, 199480, 239376, 254337, 299220, 319168, 339116, 398960, 423895, 478752, 508674, 598440, 678232, 797920, 847790, 957504, 1017348, 1196880, 1271685, 1356464, 1595840, 1695580, 2034696, 2393760, 2543370, 2712928, 3391160, 4069392, 4787520, 5086740, 5425856, 6782320, 8138784, 10173480, 13564640, 16277568, 20346960, 27129280, 40693920, 81387840]

約数ペア:

[(1, 81387840), (2, 40693920), (3, 27129280), (4, 20346960), (5, 16277568), (6, 13564640), (8, 10173480), (10, 8138784), (12, 6782320), (15, 5425856), (16, 5086740), (17, 4787520), (20, 4069392), (24, 3391160), (30, 2712928), (32, 2543370), (34, 2393760), (40, 2034696), (48, 1695580), (51, 1595840), (60, 1356464), (64, 1271685), (68, 1196880), (80, 1017348), (85, 957504), (96, 847790), (102, 797920), (120, 678232), (136, 598440), (160, 508674), (170, 478752), (192, 423895), (204, 398960), (240, 339116), (255, 319168), (272, 299220), (320, 254337), (340, 239376), (408, 199480), (480, 169558), (510, 159584), (544, 149610), (680, 119688), (816, 99740), (960, 84779), (1020, 79792), (1088, 74805), (1360, 59844), (1632, 49870), (2040, 39896), (2720, 29922), (3264, 24935), (4080, 19948), (4987, 16320), (5440, 14961), (8160, 9974)]