81911280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 320

約数和(自身を含む): 308551680

約数和(自身を除く): 226640400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 23, 24, 30, 33, 38, 40, 44, 46, 48, 55, 57, 60, 66, 69, 71, 76, 80, 88, 92, 95, 110, 114, 115, 120, 132, 138, 142, 152, 165, 176, 184, 190, 209, 213, 220, 228, 230, 240, 253, 264, 276, 284, 285, 304, 330, 345, 355, 368, 380, 418, 426, 437, 440, 456, 460, 506, 528, 552, 568, 570, 627, 660, 690, 710, 759, 760, 781, 836, 852, 874, 880, 912, 920, 1012, 1045, 1065, 1104, 1136, 1140, 1254, 1265, 1311, 1320, 1349, 1380, 1420, 1518, 1520, 1562, 1633, 1672, 1704, 1748, 1840, 2024, 2090, 2130, 2185, 2280, 2343, 2508, 2530, 2622, 2640, 2698, 2760, 2840, 3036, 3124, 3135, 3266, 3344, 3408, 3496, 3795, 3905, 4047, 4048, 4180, 4260, 4370, 4560, 4686, 4807, 4899, 5016, 5060, 5244, 5396, 5520, 5680, 6072, 6248, 6270, 6532, 6555, 6745, 6992, 7590, 7810, 8094, 8165, 8360, 8520, 8740, 9372, 9614, 9798, 10032, 10120, 10488, 10792, 11715, 12144, 12496, 12540, 13064, 13110, 13490, 14421, 14839, 15180, 15620, 16188, 16330, 16720, 17040, 17480, 17963, 18744, 19228, 19596, 20235, 20240, 20976, 21584, 23430, 24035, 24495, 25080, 26128, 26220, 26980, 28842, 29678, 30360, 31027, 31240, 32376, 32660, 34960, 35926, 37488, 38456, 39192, 40470, 44517, 46860, 48070, 48990, 50160, 52440, 53889, 53960, 57684, 59356, 60720, 62054, 62480, 64752, 65320, 71852, 72105, 74195, 76912, 78384, 80940, 89034, 89815, 93081, 93720, 96140, 97980, 104880, 107778, 107920, 115368, 118712, 124108, 130640, 143704, 144210, 148390, 155135, 161880, 178068, 179630, 186162, 187440, 192280, 195960, 215556, 222585, 230736, 237424, 248216, 269445, 287408, 288420, 296780, 310270, 323760, 341297, 356136, 359260, 372324, 384560, 391920, 431112, 445170, 465405, 496432, 538890, 576840, 593560, 620540, 682594, 712272, 718520, 744648, 862224, 890340, 930810, 1023891, 1077780, 1153680, 1187120, 1241080, 1365188, 1437040, 1489296, 1706485, 1780680, 1861620, 2047782, 2155560, 2482160, 2730376, 3412970, 3561360, 3723240, 4095564, 4311120, 5119455, 5460752, 6825940, 7446480, 8191128, 10238910, 13651880, 16382256, 20477820, 27303760, 40955640, 81911280]

約数ペア:

[(1, 81911280), (2, 40955640), (3, 27303760), (4, 20477820), (5, 16382256), (6, 13651880), (8, 10238910), (10, 8191128), (11, 7446480), (12, 6825940), (15, 5460752), (16, 5119455), (19, 4311120), (20, 4095564), (22, 3723240), (23, 3561360), (24, 3412970), (30, 2730376), (33, 2482160), (38, 2155560), (40, 2047782), (44, 1861620), (46, 1780680), (48, 1706485), (55, 1489296), (57, 1437040), (60, 1365188), (66, 1241080), (69, 1187120), (71, 1153680), (76, 1077780), (80, 1023891), (88, 930810), (92, 890340), (95, 862224), (110, 744648), (114, 718520), (115, 712272), (120, 682594), (132, 620540), (138, 593560), (142, 576840), (152, 538890), (165, 496432), (176, 465405), (184, 445170), (190, 431112), (209, 391920), (213, 384560), (220, 372324), (228, 359260), (230, 356136), (240, 341297), (253, 323760), (264, 310270), (276, 296780), (284, 288420), (285, 287408), (304, 269445), (330, 248216), (345, 237424), (355, 230736), (368, 222585), (380, 215556), (418, 195960), (426, 192280), (437, 187440), (440, 186162), (456, 179630), (460, 178068), (506, 161880), (528, 155135), (552, 148390), (568, 144210), (570, 143704), (627, 130640), (660, 124108), (690, 118712), (710, 115368), (759, 107920), (760, 107778), (781, 104880), (836, 97980), (852, 96140), (874, 93720), (880, 93081), (912, 89815), (920, 89034), (1012, 80940), (1045, 78384), (1065, 76912), (1104, 74195), (1136, 72105), (1140, 71852), (1254, 65320), (1265, 64752), (1311, 62480), (1320, 62054), (1349, 60720), (1380, 59356), (1420, 57684), (1518, 53960), (1520, 53889), (1562, 52440), (1633, 50160), (1672, 48990), (1704, 48070), (1748, 46860), (1840, 44517), (2024, 40470), (2090, 39192), (2130, 38456), (2185, 37488), (2280, 35926), (2343, 34960), (2508, 32660), (2530, 32376), (2622, 31240), (2640, 31027), (2698, 30360), (2760, 29678), (2840, 28842), (3036, 26980), (3124, 26220), (3135, 26128), (3266, 25080), (3344, 24495), (3408, 24035), (3496, 23430), (3795, 21584), (3905, 20976), (4047, 20240), (4048, 20235), (4180, 19596), (4260, 19228), (4370, 18744), (4560, 17963), (4686, 17480), (4807, 17040), (4899, 16720), (5016, 16330), (5060, 16188), (5244, 15620), (5396, 15180), (5520, 14839), (5680, 14421), (6072, 13490), (6248, 13110), (6270, 13064), (6532, 12540), (6555, 12496), (6745, 12144), (6992, 11715), (7590, 10792), (7810, 10488), (8094, 10120), (8165, 10032), (8360, 9798), (8520, 9614), (8740, 9372)]