81386923840

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{64601}}^1$

素因数の和:64776

約数の個数: 112

約数和(自身を含む): 201632661504

約数和(自身を除く): 120245737664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 155, 160, 248, 254, 310, 320, 496, 508, 620, 635, 992, 1016, 1240, 1270, 1984, 2032, 2480, 2540, 3937, 4064, 4960, 5080, 7874, 8128, 9920, 10160, 15748, 19685, 20320, 31496, 39370, 40640, 62992, 64601, 78740, 125984, 129202, 157480, 251968, 258404, 314960, 323005, 516808, 629920, 646010, 1033616, 1259840, 1292020, 2002631, 2067232, 2584040, 4005262, 4134464, 5168080, 8010524, 8204327, 10013155, 10336160, 16021048, 16408654, 20026310, 20672320, 32042096, 32817308, 40052620, 41021635, 64084192, 65634616, 80105240, 82043270, 128168384, 131269232, 160210480, 164086540, 254334137, 262538464, 320420960, 328173080, 508668274, 525076928, 640841920, 656346160, 1017336548, 1271670685, 1312692320, 2034673096, 2543341370, 2625384640, 4069346192, 5086682740, 8138692384, 10173365480, 16277384768, 20346730960, 40693461920, 81386923840]

約数ペア:

[(1, 81386923840), (2, 40693461920), (4, 20346730960), (5, 16277384768), (8, 10173365480), (10, 8138692384), (16, 5086682740), (20, 4069346192), (31, 2625384640), (32, 2543341370), (40, 2034673096), (62, 1312692320), (64, 1271670685), (80, 1017336548), (124, 656346160), (127, 640841920), (155, 525076928), (160, 508668274), (248, 328173080), (254, 320420960), (310, 262538464), (320, 254334137), (496, 164086540), (508, 160210480), (620, 131269232), (635, 128168384), (992, 82043270), (1016, 80105240), (1240, 65634616), (1270, 64084192), (1984, 41021635), (2032, 40052620), (2480, 32817308), (2540, 32042096), (3937, 20672320), (4064, 20026310), (4960, 16408654), (5080, 16021048), (7874, 10336160), (8128, 10013155), (9920, 8204327), (10160, 8010524), (15748, 5168080), (19685, 4134464), (20320, 4005262), (31496, 2584040), (39370, 2067232), (40640, 2002631), (62992, 1292020), (64601, 1259840), (78740, 1033616), (125984, 646010), (129202, 629920), (157480, 516808), (251968, 323005), (258404, 314960)]