81256517008

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{491}}^1$

素因数の和:837

約数の個数: 120

約数和(自身を含む): 167203405440

約数和(自身を除く): 85946888432

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 229, 248, 376, 458, 491, 496, 752, 916, 961, 982, 1457, 1832, 1922, 1964, 2914, 3664, 3844, 3928, 5828, 7099, 7688, 7856, 10763, 11656, 14198, 15221, 15376, 21526, 23077, 23312, 28396, 30442, 43052, 45167, 46154, 56792, 60884, 86104, 90334, 92308, 112439, 113584, 121768, 172208, 180668, 184616, 220069, 224878, 243536, 333653, 361336, 369232, 440138, 449756, 471851, 667306, 715387, 722672, 880276, 899512, 943702, 1334612, 1430774, 1760552, 1799024, 1887404, 2669224, 2861548, 3485609, 3521104, 3774808, 5284633, 5338448, 5723096, 6971218, 7549616, 10343243, 10569266, 11446192, 13942436, 20686486, 21138532, 22176997, 27884872, 41372972, 42277064, 44353994, 55769744, 82745944, 84554128, 88707988, 108053879, 163823623, 165491888, 177415976, 216107758, 327647246, 354831952, 432215516, 655294492, 864431032, 1310588984, 1728862064, 2621177968, 5078532313, 10157064626, 20314129252, 40628258504, 81256517008]

約数ペア:

[(1, 81256517008), (2, 40628258504), (4, 20314129252), (8, 10157064626), (16, 5078532313), (31, 2621177968), (47, 1728862064), (62, 1310588984), (94, 864431032), (124, 655294492), (188, 432215516), (229, 354831952), (248, 327647246), (376, 216107758), (458, 177415976), (491, 165491888), (496, 163823623), (752, 108053879), (916, 88707988), (961, 84554128), (982, 82745944), (1457, 55769744), (1832, 44353994), (1922, 42277064), (1964, 41372972), (2914, 27884872), (3664, 22176997), (3844, 21138532), (3928, 20686486), (5828, 13942436), (7099, 11446192), (7688, 10569266), (7856, 10343243), (10763, 7549616), (11656, 6971218), (14198, 5723096), (15221, 5338448), (15376, 5284633), (21526, 3774808), (23077, 3521104), (23312, 3485609), (28396, 2861548), (30442, 2669224), (43052, 1887404), (45167, 1799024), (46154, 1760552), (56792, 1430774), (60884, 1334612), (86104, 943702), (90334, 899512), (92308, 880276), (112439, 722672), (113584, 715387), (121768, 667306), (172208, 471851), (180668, 449756), (184616, 440138), (220069, 369232), (224878, 361336), (243536, 333653)]