142821720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:454

約数の個数: 192

約数和(自身を含む): 496005120

約数和(自身を除く): 353183400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 47, 60, 69, 72, 90, 92, 94, 115, 120, 138, 141, 180, 184, 188, 207, 230, 235, 276, 282, 345, 360, 367, 376, 414, 423, 460, 470, 552, 564, 690, 705, 734, 828, 846, 920, 940, 1035, 1081, 1101, 1128, 1380, 1410, 1468, 1656, 1692, 1835, 1880, 2070, 2115, 2162, 2202, 2760, 2820, 2936, 3243, 3303, 3384, 3670, 4140, 4230, 4324, 4404, 5405, 5505, 5640, 6486, 6606, 7340, 8280, 8441, 8460, 8648, 8808, 9729, 10810, 11010, 12972, 13212, 14680, 16215, 16515, 16882, 16920, 17249, 19458, 21620, 22020, 25323, 25944, 26424, 32430, 33030, 33764, 34498, 38916, 42205, 43240, 44040, 48645, 50646, 51747, 64860, 66060, 67528, 68996, 75969, 77832, 84410, 86245, 97290, 101292, 103494, 126615, 129720, 132120, 137992, 151938, 155241, 168820, 172490, 194580, 202584, 206988, 253230, 258735, 303876, 310482, 337640, 344980, 379845, 389160, 396727, 413976, 506460, 517470, 607752, 620964, 689960, 759690, 776205, 793454, 1012920, 1034940, 1190181, 1241928, 1519380, 1552410, 1586908, 1983635, 2069880, 2380362, 3038760, 3104820, 3173816, 3570543, 3967270, 4760724, 5950905, 6209640, 7141086, 7934540, 9521448, 11901810, 14282172, 15869080, 17852715, 23803620, 28564344, 35705430, 47607240, 71410860, 142821720]

約数ペア:

[(1, 142821720), (2, 71410860), (3, 47607240), (4, 35705430), (5, 28564344), (6, 23803620), (8, 17852715), (9, 15869080), (10, 14282172), (12, 11901810), (15, 9521448), (18, 7934540), (20, 7141086), (23, 6209640), (24, 5950905), (30, 4760724), (36, 3967270), (40, 3570543), (45, 3173816), (46, 3104820), (47, 3038760), (60, 2380362), (69, 2069880), (72, 1983635), (90, 1586908), (92, 1552410), (94, 1519380), (115, 1241928), (120, 1190181), (138, 1034940), (141, 1012920), (180, 793454), (184, 776205), (188, 759690), (207, 689960), (230, 620964), (235, 607752), (276, 517470), (282, 506460), (345, 413976), (360, 396727), (367, 389160), (376, 379845), (414, 344980), (423, 337640), (460, 310482), (470, 303876), (552, 258735), (564, 253230), (690, 206988), (705, 202584), (734, 194580), (828, 172490), (846, 168820), (920, 155241), (940, 151938), (1035, 137992), (1081, 132120), (1101, 129720), (1128, 126615), (1380, 103494), (1410, 101292), (1468, 97290), (1656, 86245), (1692, 84410), (1835, 77832), (1880, 75969), (2070, 68996), (2115, 67528), (2162, 66060), (2202, 64860), (2760, 51747), (2820, 50646), (2936, 48645), (3243, 44040), (3303, 43240), (3384, 42205), (3670, 38916), (4140, 34498), (4230, 33764), (4324, 33030), (4404, 32430), (5405, 26424), (5505, 25944), (5640, 25323), (6486, 22020), (6606, 21620), (7340, 19458), (8280, 17249), (8441, 16920), (8460, 16882), (8648, 16515), (8808, 16215), (9729, 14680), (10810, 13212), (11010, 12972)]