1821371520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:555

約数の個数: 256

約数和(自身を含む): 6091407360

約数和(自身を除く): 4270035840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 71, 80, 93, 96, 120, 124, 128, 142, 155, 160, 186, 192, 213, 240, 248, 284, 310, 320, 355, 372, 384, 426, 431, 465, 480, 496, 568, 620, 640, 710, 744, 852, 862, 930, 960, 992, 1065, 1136, 1240, 1293, 1420, 1488, 1704, 1724, 1860, 1920, 1984, 2130, 2155, 2201, 2272, 2480, 2586, 2840, 2976, 3408, 3448, 3720, 3968, 4260, 4310, 4402, 4544, 4960, 5172, 5680, 5952, 6465, 6603, 6816, 6896, 7440, 8520, 8620, 8804, 9088, 9920, 10344, 11005, 11360, 11904, 12930, 13206, 13361, 13632, 13792, 14880, 17040, 17240, 17608, 19840, 20688, 22010, 22720, 25860, 26412, 26722, 27264, 27584, 29760, 30601, 33015, 34080, 34480, 35216, 40083, 41376, 44020, 45440, 51720, 52824, 53444, 55168, 59520, 61202, 66030, 66805, 68160, 68960, 70432, 80166, 82752, 88040, 91803, 103440, 105648, 106888, 122404, 132060, 133610, 136320, 137920, 140864, 153005, 160332, 165504, 176080, 183606, 200415, 206880, 211296, 213776, 244808, 264120, 267220, 275840, 281728, 306010, 320664, 352160, 367212, 400830, 413760, 422592, 427552, 459015, 489616, 528240, 534440, 612020, 641328, 704320, 734424, 801660, 827520, 845184, 855104, 918030, 948631, 979232, 1056480, 1068880, 1224040, 1282656, 1408640, 1468848, 1603320, 1710208, 1836060, 1897262, 1958464, 2112960, 2137760, 2448080, 2565312, 2845893, 2937696, 3206640, 3672120, 3794524, 3916928, 4225920, 4275520, 4743155, 4896160, 5130624, 5691786, 5875392, 6413280, 7344240, 7589048, 8551040, 9486310, 9792320, 11383572, 11750784, 12826560, 14229465, 14688480, 15178096, 18972620, 19584640, 22767144, 25653120, 28458930, 29376960, 30356192, 37945240, 45534288, 56917860, 58753920, 60712384, 75890480, 91068576, 113835720, 121424768, 151780960, 182137152, 227671440, 303561920, 364274304, 455342880, 607123840, 910685760, 1821371520]

約数ペア:

[(1, 1821371520), (2, 910685760), (3, 607123840), (4, 455342880), (5, 364274304), (6, 303561920), (8, 227671440), (10, 182137152), (12, 151780960), (15, 121424768), (16, 113835720), (20, 91068576), (24, 75890480), (30, 60712384), (31, 58753920), (32, 56917860), (40, 45534288), (48, 37945240), (60, 30356192), (62, 29376960), (64, 28458930), (71, 25653120), (80, 22767144), (93, 19584640), (96, 18972620), (120, 15178096), (124, 14688480), (128, 14229465), (142, 12826560), (155, 11750784), (160, 11383572), (186, 9792320), (192, 9486310), (213, 8551040), (240, 7589048), (248, 7344240), (284, 6413280), (310, 5875392), (320, 5691786), (355, 5130624), (372, 4896160), (384, 4743155), (426, 4275520), (431, 4225920), (465, 3916928), (480, 3794524), (496, 3672120), (568, 3206640), (620, 2937696), (640, 2845893), (710, 2565312), (744, 2448080), (852, 2137760), (862, 2112960), (930, 1958464), (960, 1897262), (992, 1836060), (1065, 1710208), (1136, 1603320), (1240, 1468848), (1293, 1408640), (1420, 1282656), (1488, 1224040), (1704, 1068880), (1724, 1056480), (1860, 979232), (1920, 948631), (1984, 918030), (2130, 855104), (2155, 845184), (2201, 827520), (2272, 801660), (2480, 734424), (2586, 704320), (2840, 641328), (2976, 612020), (3408, 534440), (3448, 528240), (3720, 489616), (3968, 459015), (4260, 427552), (4310, 422592), (4402, 413760), (4544, 400830), (4960, 367212), (5172, 352160), (5680, 320664), (5952, 306010), (6465, 281728), (6603, 275840), (6816, 267220), (6896, 264120), (7440, 244808), (8520, 213776), (8620, 211296), (8804, 206880), (9088, 200415), (9920, 183606), (10344, 176080), (11005, 165504), (11360, 160332), (11904, 153005), (12930, 140864), (13206, 137920), (13361, 136320), (13632, 133610), (13792, 132060), (14880, 122404), (17040, 106888), (17240, 105648), (17608, 103440), (19840, 91803), (20688, 88040), (22010, 82752), (22720, 80166), (25860, 70432), (26412, 68960), (26722, 68160), (27264, 66805), (27584, 66030), (29760, 61202), (30601, 59520), (33015, 55168), (34080, 53444), (34480, 52824), (35216, 51720), (40083, 45440), (41376, 44020)]