820245120

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13781}}^1$

素因数の和:13834

約数の個数: 128

約数和(自身を含む): 2699066880

約数和(自身を除く): 1878821760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 930, 960, 992, 1240, 1488, 1860, 1920, 1984, 2480, 2976, 3720, 3968, 4960, 5952, 7440, 9920, 11904, 13781, 14880, 19840, 27562, 29760, 41343, 55124, 59520, 68905, 82686, 110248, 137810, 165372, 206715, 220496, 275620, 330744, 413430, 427211, 440992, 551240, 661488, 826860, 854422, 881984, 1102480, 1281633, 1322976, 1653720, 1708844, 1763968, 2136055, 2204960, 2563266, 2645952, 3307440, 3417688, 4272110, 4409920, 5126532, 5291904, 6408165, 6614880, 6835376, 8544220, 8819840, 10253064, 12816330, 13229760, 13670752, 17088440, 20506128, 25632660, 26459520, 27341504, 34176880, 41012256, 51265320, 54683008, 68353760, 82024512, 102530640, 136707520, 164049024, 205061280, 273415040, 410122560, 820245120]

約数ペア:

[(1, 820245120), (2, 410122560), (3, 273415040), (4, 205061280), (5, 164049024), (6, 136707520), (8, 102530640), (10, 82024512), (12, 68353760), (15, 54683008), (16, 51265320), (20, 41012256), (24, 34176880), (30, 27341504), (31, 26459520), (32, 25632660), (40, 20506128), (48, 17088440), (60, 13670752), (62, 13229760), (64, 12816330), (80, 10253064), (93, 8819840), (96, 8544220), (120, 6835376), (124, 6614880), (128, 6408165), (155, 5291904), (160, 5126532), (186, 4409920), (192, 4272110), (240, 3417688), (248, 3307440), (310, 2645952), (320, 2563266), (372, 2204960), (384, 2136055), (465, 1763968), (480, 1708844), (496, 1653720), (620, 1322976), (640, 1281633), (744, 1102480), (930, 881984), (960, 854422), (992, 826860), (1240, 661488), (1488, 551240), (1860, 440992), (1920, 427211), (1984, 413430), (2480, 330744), (2976, 275620), (3720, 220496), (3968, 206715), (4960, 165372), (5952, 137810), (7440, 110248), (9920, 82686), (11904, 68905), (13781, 59520), (14880, 55124), (19840, 41343), (27562, 29760)]