81894960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{16249}}^1$

素因数の和:16275

約数の個数: 120

約数和(自身を含む): 314340000

約数和(自身を除く): 232445040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 16249, 32498, 48747, 64996, 81245, 97494, 113743, 129992, 146241, 162490, 194988, 227486, 243735, 259984, 292482, 324980, 341229, 389976, 454972, 487470, 568715, 584964, 649960, 682458, 731205, 779952, 909944, 974940, 1023687, 1137430, 1169928, 1299920, 1364916, 1462410, 1706145, 1819888, 1949880, 2047374, 2274860, 2339856, 2729832, 2924820, 3412290, 3899760, 4094748, 4549720, 5118435, 5459664, 5849640, 6824580, 8189496, 9099440, 10236870, 11699280, 13649160, 16378992, 20473740, 27298320, 40947480, 81894960]

約数ペア:

[(1, 81894960), (2, 40947480), (3, 27298320), (4, 20473740), (5, 16378992), (6, 13649160), (7, 11699280), (8, 10236870), (9, 9099440), (10, 8189496), (12, 6824580), (14, 5849640), (15, 5459664), (16, 5118435), (18, 4549720), (20, 4094748), (21, 3899760), (24, 3412290), (28, 2924820), (30, 2729832), (35, 2339856), (36, 2274860), (40, 2047374), (42, 1949880), (45, 1819888), (48, 1706145), (56, 1462410), (60, 1364916), (63, 1299920), (70, 1169928), (72, 1137430), (80, 1023687), (84, 974940), (90, 909944), (105, 779952), (112, 731205), (120, 682458), (126, 649960), (140, 584964), (144, 568715), (168, 487470), (180, 454972), (210, 389976), (240, 341229), (252, 324980), (280, 292482), (315, 259984), (336, 243735), (360, 227486), (420, 194988), (504, 162490), (560, 146241), (630, 129992), (720, 113743), (840, 97494), (1008, 81245), (1260, 64996), (1680, 48747), (2520, 32498), (5040, 16249)]