81906720

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1283}}^1$

素因数の和:1327

約数の個数: 192

約数和(自身を含む): 310625280

約数和(自身を除く): 228718560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 140, 152, 160, 168, 190, 210, 224, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 480, 532, 560, 570, 608, 665, 672, 760, 798, 840, 912, 1064, 1120, 1140, 1283, 1330, 1520, 1596, 1680, 1824, 1995, 2128, 2280, 2566, 2660, 3040, 3192, 3360, 3849, 3990, 4256, 4560, 5132, 5320, 6384, 6415, 7698, 7980, 8981, 9120, 10264, 10640, 12768, 12830, 15396, 15960, 17962, 19245, 20528, 21280, 24377, 25660, 26943, 30792, 31920, 35924, 38490, 41056, 44905, 48754, 51320, 53886, 61584, 63840, 71848, 73131, 76980, 89810, 97508, 102640, 107772, 121885, 123168, 134715, 143696, 146262, 153960, 170639, 179620, 195016, 205280, 215544, 243770, 269430, 287392, 292524, 307920, 341278, 359240, 365655, 390032, 431088, 487540, 511917, 538860, 585048, 615840, 682556, 718480, 731310, 780064, 853195, 862176, 975080, 1023834, 1077720, 1170096, 1365112, 1436960, 1462620, 1706390, 1950160, 2047668, 2155440, 2340192, 2559585, 2730224, 2925240, 3412780, 3900320, 4095336, 4310880, 5119170, 5460448, 5850480, 6825560, 8190672, 10238340, 11700960, 13651120, 16381344, 20476680, 27302240, 40953360, 81906720]

約数ペア:

[(1, 81906720), (2, 40953360), (3, 27302240), (4, 20476680), (5, 16381344), (6, 13651120), (7, 11700960), (8, 10238340), (10, 8190672), (12, 6825560), (14, 5850480), (15, 5460448), (16, 5119170), (19, 4310880), (20, 4095336), (21, 3900320), (24, 3412780), (28, 2925240), (30, 2730224), (32, 2559585), (35, 2340192), (38, 2155440), (40, 2047668), (42, 1950160), (48, 1706390), (56, 1462620), (57, 1436960), (60, 1365112), (70, 1170096), (76, 1077720), (80, 1023834), (84, 975080), (95, 862176), (96, 853195), (105, 780064), (112, 731310), (114, 718480), (120, 682556), (133, 615840), (140, 585048), (152, 538860), (160, 511917), (168, 487540), (190, 431088), (210, 390032), (224, 365655), (228, 359240), (240, 341278), (266, 307920), (280, 292524), (285, 287392), (304, 269430), (336, 243770), (380, 215544), (399, 205280), (420, 195016), (456, 179620), (480, 170639), (532, 153960), (560, 146262), (570, 143696), (608, 134715), (665, 123168), (672, 121885), (760, 107772), (798, 102640), (840, 97508), (912, 89810), (1064, 76980), (1120, 73131), (1140, 71848), (1283, 63840), (1330, 61584), (1520, 53886), (1596, 51320), (1680, 48754), (1824, 44905), (1995, 41056), (2128, 38490), (2280, 35924), (2566, 31920), (2660, 30792), (3040, 26943), (3192, 25660), (3360, 24377), (3849, 21280), (3990, 20528), (4256, 19245), (4560, 17962), (5132, 15960), (5320, 15396), (6384, 12830), (6415, 12768), (7698, 10640), (7980, 10264), (8981, 9120)]