281479680

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:691

約数の個数: 240

約数和(自身を含む): 1027746720

約数和(自身を除く): 746267040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 180, 190, 192, 228, 240, 256, 285, 288, 304, 320, 342, 360, 380, 384, 456, 480, 512, 570, 576, 608, 640, 643, 684, 720, 760, 768, 855, 912, 960, 1140, 1152, 1216, 1280, 1286, 1368, 1440, 1520, 1536, 1710, 1824, 1920, 1929, 2280, 2304, 2432, 2560, 2572, 2736, 2880, 3040, 3215, 3420, 3648, 3840, 3858, 4560, 4608, 4864, 5144, 5472, 5760, 5787, 6080, 6430, 6840, 7296, 7680, 7716, 9120, 9645, 9728, 10288, 10944, 11520, 11574, 12160, 12217, 12860, 13680, 14592, 15432, 18240, 19290, 20576, 21888, 23040, 23148, 24320, 24434, 25720, 27360, 28935, 29184, 30864, 36480, 36651, 38580, 41152, 43776, 46296, 48640, 48868, 51440, 54720, 57870, 61085, 61728, 72960, 73302, 77160, 82304, 87552, 92592, 97736, 102880, 109440, 109953, 115740, 122170, 123456, 145920, 146604, 154320, 164608, 183255, 185184, 195472, 205760, 218880, 219906, 231480, 244340, 246912, 293208, 308640, 329216, 366510, 370368, 390944, 411520, 437760, 439812, 462960, 488680, 493824, 549765, 586416, 617280, 733020, 740736, 781888, 823040, 879624, 925920, 977360, 987648, 1099530, 1172832, 1234560, 1466040, 1481472, 1563776, 1646080, 1759248, 1851840, 1954720, 2199060, 2345664, 2469120, 2932080, 2962944, 3127552, 3518496, 3703680, 3909440, 4398120, 4691328, 4938240, 5864160, 6255104, 7036992, 7407360, 7818880, 8796240, 9382656, 11728320, 14073984, 14814720, 15637760, 17592480, 18765312, 23456640, 28147968, 31275520, 35184960, 46913280, 56295936, 70369920, 93826560, 140739840, 281479680]

約数ペア:

[(1, 281479680), (2, 140739840), (3, 93826560), (4, 70369920), (5, 56295936), (6, 46913280), (8, 35184960), (9, 31275520), (10, 28147968), (12, 23456640), (15, 18765312), (16, 17592480), (18, 15637760), (19, 14814720), (20, 14073984), (24, 11728320), (30, 9382656), (32, 8796240), (36, 7818880), (38, 7407360), (40, 7036992), (45, 6255104), (48, 5864160), (57, 4938240), (60, 4691328), (64, 4398120), (72, 3909440), (76, 3703680), (80, 3518496), (90, 3127552), (95, 2962944), (96, 2932080), (114, 2469120), (120, 2345664), (128, 2199060), (144, 1954720), (152, 1851840), (160, 1759248), (171, 1646080), (180, 1563776), (190, 1481472), (192, 1466040), (228, 1234560), (240, 1172832), (256, 1099530), (285, 987648), (288, 977360), (304, 925920), (320, 879624), (342, 823040), (360, 781888), (380, 740736), (384, 733020), (456, 617280), (480, 586416), (512, 549765), (570, 493824), (576, 488680), (608, 462960), (640, 439812), (643, 437760), (684, 411520), (720, 390944), (760, 370368), (768, 366510), (855, 329216), (912, 308640), (960, 293208), (1140, 246912), (1152, 244340), (1216, 231480), (1280, 219906), (1286, 218880), (1368, 205760), (1440, 195472), (1520, 185184), (1536, 183255), (1710, 164608), (1824, 154320), (1920, 146604), (1929, 145920), (2280, 123456), (2304, 122170), (2432, 115740), (2560, 109953), (2572, 109440), (2736, 102880), (2880, 97736), (3040, 92592), (3215, 87552), (3420, 82304), (3648, 77160), (3840, 73302), (3858, 72960), (4560, 61728), (4608, 61085), (4864, 57870), (5144, 54720), (5472, 51440), (5760, 48868), (5787, 48640), (6080, 46296), (6430, 43776), (6840, 41152), (7296, 38580), (7680, 36651), (7716, 36480), (9120, 30864), (9645, 29184), (9728, 28935), (10288, 27360), (10944, 25720), (11520, 24434), (11574, 24320), (12160, 23148), (12217, 23040), (12860, 21888), (13680, 20576), (14592, 19290), (15432, 18240)]