128394240

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:684

約数の個数: 176

約数和(自身を含む): 442938048

約数和(自身を除く): 314543808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 512, 520, 624, 640, 643, 768, 780, 832, 960, 1024, 1040, 1248, 1280, 1286, 1536, 1560, 1664, 1920, 1929, 2080, 2496, 2560, 2572, 3072, 3120, 3215, 3328, 3840, 3858, 4160, 4992, 5120, 5144, 6240, 6430, 6656, 7680, 7716, 8320, 8359, 9645, 9984, 10288, 12480, 12860, 13312, 15360, 15432, 16640, 16718, 19290, 19968, 20576, 24960, 25077, 25720, 30864, 33280, 33436, 38580, 39936, 41152, 41795, 49920, 50154, 51440, 61728, 66560, 66872, 77160, 82304, 83590, 99840, 100308, 102880, 123456, 125385, 133744, 154320, 164608, 167180, 199680, 200616, 205760, 246912, 250770, 267488, 308640, 329216, 334360, 401232, 411520, 493824, 501540, 534976, 617280, 658432, 668720, 802464, 823040, 987648, 1003080, 1069952, 1234560, 1337440, 1604928, 1646080, 1975296, 2006160, 2139904, 2469120, 2674880, 3209856, 3292160, 4012320, 4279808, 4938240, 5349760, 6419712, 8024640, 8559616, 9876480, 10699520, 12839424, 16049280, 21399040, 25678848, 32098560, 42798080, 64197120, 128394240]

約数ペア:

[(1, 128394240), (2, 64197120), (3, 42798080), (4, 32098560), (5, 25678848), (6, 21399040), (8, 16049280), (10, 12839424), (12, 10699520), (13, 9876480), (15, 8559616), (16, 8024640), (20, 6419712), (24, 5349760), (26, 4938240), (30, 4279808), (32, 4012320), (39, 3292160), (40, 3209856), (48, 2674880), (52, 2469120), (60, 2139904), (64, 2006160), (65, 1975296), (78, 1646080), (80, 1604928), (96, 1337440), (104, 1234560), (120, 1069952), (128, 1003080), (130, 987648), (156, 823040), (160, 802464), (192, 668720), (195, 658432), (208, 617280), (240, 534976), (256, 501540), (260, 493824), (312, 411520), (320, 401232), (384, 334360), (390, 329216), (416, 308640), (480, 267488), (512, 250770), (520, 246912), (624, 205760), (640, 200616), (643, 199680), (768, 167180), (780, 164608), (832, 154320), (960, 133744), (1024, 125385), (1040, 123456), (1248, 102880), (1280, 100308), (1286, 99840), (1536, 83590), (1560, 82304), (1664, 77160), (1920, 66872), (1929, 66560), (2080, 61728), (2496, 51440), (2560, 50154), (2572, 49920), (3072, 41795), (3120, 41152), (3215, 39936), (3328, 38580), (3840, 33436), (3858, 33280), (4160, 30864), (4992, 25720), (5120, 25077), (5144, 24960), (6240, 20576), (6430, 19968), (6656, 19290), (7680, 16718), (7716, 16640), (8320, 15432), (8359, 15360), (9645, 13312), (9984, 12860), (10288, 12480)]