81896640

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{1741}}^1$

素因数の和:1775

約数の個数: 168

約数和(自身を含む): 302648112

約数和(自身を除く): 220751472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 392, 420, 448, 480, 490, 560, 588, 672, 735, 784, 840, 960, 980, 1120, 1176, 1344, 1470, 1568, 1680, 1741, 1960, 2240, 2352, 2940, 3136, 3360, 3482, 3920, 4704, 5223, 5880, 6720, 6964, 7840, 8705, 9408, 10446, 11760, 12187, 13928, 15680, 17410, 20892, 23520, 24374, 26115, 27856, 34820, 36561, 41784, 47040, 48748, 52230, 55712, 60935, 69640, 73122, 83568, 85309, 97496, 104460, 111424, 121870, 139280, 146244, 167136, 170618, 182805, 194992, 208920, 243740, 255927, 278560, 292488, 334272, 341236, 365610, 389984, 417840, 426545, 487480, 511854, 557120, 584976, 682472, 731220, 779968, 835680, 853090, 974960, 1023708, 1169952, 1279635, 1364944, 1462440, 1671360, 1706180, 1949920, 2047416, 2339904, 2559270, 2729888, 2924880, 3412360, 3899840, 4094832, 5118540, 5459776, 5849760, 6824720, 8189664, 10237080, 11699520, 13649440, 16379328, 20474160, 27298880, 40948320, 81896640]

約数ペア:

[(1, 81896640), (2, 40948320), (3, 27298880), (4, 20474160), (5, 16379328), (6, 13649440), (7, 11699520), (8, 10237080), (10, 8189664), (12, 6824720), (14, 5849760), (15, 5459776), (16, 5118540), (20, 4094832), (21, 3899840), (24, 3412360), (28, 2924880), (30, 2729888), (32, 2559270), (35, 2339904), (40, 2047416), (42, 1949920), (48, 1706180), (49, 1671360), (56, 1462440), (60, 1364944), (64, 1279635), (70, 1169952), (80, 1023708), (84, 974960), (96, 853090), (98, 835680), (105, 779968), (112, 731220), (120, 682472), (140, 584976), (147, 557120), (160, 511854), (168, 487480), (192, 426545), (196, 417840), (210, 389984), (224, 365610), (240, 341236), (245, 334272), (280, 292488), (294, 278560), (320, 255927), (336, 243740), (392, 208920), (420, 194992), (448, 182805), (480, 170618), (490, 167136), (560, 146244), (588, 139280), (672, 121870), (735, 111424), (784, 104460), (840, 97496), (960, 85309), (980, 83568), (1120, 73122), (1176, 69640), (1344, 60935), (1470, 55712), (1568, 52230), (1680, 48748), (1741, 47040), (1960, 41784), (2240, 36561), (2352, 34820), (2940, 27856), (3136, 26115), (3360, 24374), (3482, 23520), (3920, 20892), (4704, 17410), (5223, 15680), (5880, 13928), (6720, 12187), (6964, 11760), (7840, 10446), (8705, 9408)]