120398720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:560

約数の個数: 128

約数和(自身を含む): 321300000

約数和(自身を除く): 200901280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 52, 58, 64, 65, 80, 104, 116, 128, 130, 145, 160, 208, 232, 260, 290, 320, 377, 416, 464, 499, 520, 580, 640, 754, 832, 928, 998, 1040, 1160, 1508, 1664, 1856, 1885, 1996, 2080, 2320, 2495, 3016, 3712, 3770, 3992, 4160, 4640, 4990, 6032, 6487, 7540, 7984, 8320, 9280, 9980, 12064, 12974, 14471, 15080, 15968, 18560, 19960, 24128, 25948, 28942, 30160, 31936, 32435, 39920, 48256, 51896, 57884, 60320, 63872, 64870, 72355, 79840, 103792, 115768, 120640, 129740, 144710, 159680, 188123, 207584, 231536, 241280, 259480, 289420, 319360, 376246, 415168, 463072, 518960, 578840, 752492, 830336, 926144, 940615, 1037920, 1157680, 1504984, 1852288, 1881230, 2075840, 2315360, 3009968, 3762460, 4151680, 4630720, 6019936, 7524920, 9261440, 12039872, 15049840, 24079744, 30099680, 60199360, 120398720]

約数ペア:

[(1, 120398720), (2, 60199360), (4, 30099680), (5, 24079744), (8, 15049840), (10, 12039872), (13, 9261440), (16, 7524920), (20, 6019936), (26, 4630720), (29, 4151680), (32, 3762460), (40, 3009968), (52, 2315360), (58, 2075840), (64, 1881230), (65, 1852288), (80, 1504984), (104, 1157680), (116, 1037920), (128, 940615), (130, 926144), (145, 830336), (160, 752492), (208, 578840), (232, 518960), (260, 463072), (290, 415168), (320, 376246), (377, 319360), (416, 289420), (464, 259480), (499, 241280), (520, 231536), (580, 207584), (640, 188123), (754, 159680), (832, 144710), (928, 129740), (998, 120640), (1040, 115768), (1160, 103792), (1508, 79840), (1664, 72355), (1856, 64870), (1885, 63872), (1996, 60320), (2080, 57884), (2320, 51896), (2495, 48256), (3016, 39920), (3712, 32435), (3770, 31936), (3992, 30160), (4160, 28942), (4640, 25948), (4990, 24128), (6032, 19960), (6487, 18560), (7540, 15968), (7984, 15080), (8320, 14471), (9280, 12974), (9980, 12064)]