128167920

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:394

約数の個数: 240

約数和(自身を含む): 471219840

約数和(自身を除く): 343051920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 108, 114, 120, 135, 144, 152, 162, 171, 180, 190, 216, 228, 240, 243, 270, 285, 304, 324, 342, 347, 360, 380, 405, 432, 456, 486, 513, 540, 570, 648, 684, 694, 720, 760, 810, 855, 912, 972, 1026, 1041, 1080, 1140, 1215, 1296, 1368, 1388, 1520, 1539, 1620, 1710, 1735, 1944, 2052, 2082, 2160, 2280, 2430, 2565, 2736, 2776, 3078, 3123, 3240, 3420, 3470, 3888, 4104, 4164, 4560, 4617, 4860, 5130, 5205, 5552, 6156, 6246, 6480, 6593, 6840, 6940, 7695, 8208, 8328, 9234, 9369, 9720, 10260, 10410, 12312, 12492, 13186, 13680, 13880, 15390, 15615, 16656, 18468, 18738, 19440, 19779, 20520, 20820, 23085, 24624, 24984, 26372, 27760, 28107, 30780, 31230, 32965, 36936, 37476, 39558, 41040, 41640, 46170, 46845, 49968, 52744, 56214, 59337, 61560, 62460, 65930, 73872, 74952, 79116, 83280, 84321, 92340, 93690, 98895, 105488, 112428, 118674, 123120, 124920, 131860, 140535, 149904, 158232, 168642, 178011, 184680, 187380, 197790, 224856, 237348, 249840, 263720, 281070, 296685, 316464, 337284, 356022, 369360, 374760, 395580, 421605, 449712, 474696, 527440, 534033, 562140, 593370, 674568, 712044, 749520, 791160, 843210, 890055, 949392, 1068066, 1124280, 1186740, 1349136, 1424088, 1582320, 1602099, 1686420, 1780110, 2136132, 2248560, 2373480, 2670165, 2848176, 3204198, 3372840, 3560220, 4272264, 4746960, 5340330, 6408396, 6745680, 7120440, 8010495, 8544528, 10680660, 12816792, 14240880, 16020990, 21361320, 25633584, 32041980, 42722640, 64083960, 128167920]

約数ペア:

[(1, 128167920), (2, 64083960), (3, 42722640), (4, 32041980), (5, 25633584), (6, 21361320), (8, 16020990), (9, 14240880), (10, 12816792), (12, 10680660), (15, 8544528), (16, 8010495), (18, 7120440), (19, 6745680), (20, 6408396), (24, 5340330), (27, 4746960), (30, 4272264), (36, 3560220), (38, 3372840), (40, 3204198), (45, 2848176), (48, 2670165), (54, 2373480), (57, 2248560), (60, 2136132), (72, 1780110), (76, 1686420), (80, 1602099), (81, 1582320), (90, 1424088), (95, 1349136), (108, 1186740), (114, 1124280), (120, 1068066), (135, 949392), (144, 890055), (152, 843210), (162, 791160), (171, 749520), (180, 712044), (190, 674568), (216, 593370), (228, 562140), (240, 534033), (243, 527440), (270, 474696), (285, 449712), (304, 421605), (324, 395580), (342, 374760), (347, 369360), (360, 356022), (380, 337284), (405, 316464), (432, 296685), (456, 281070), (486, 263720), (513, 249840), (540, 237348), (570, 224856), (648, 197790), (684, 187380), (694, 184680), (720, 178011), (760, 168642), (810, 158232), (855, 149904), (912, 140535), (972, 131860), (1026, 124920), (1041, 123120), (1080, 118674), (1140, 112428), (1215, 105488), (1296, 98895), (1368, 93690), (1388, 92340), (1520, 84321), (1539, 83280), (1620, 79116), (1710, 74952), (1735, 73872), (1944, 65930), (2052, 62460), (2082, 61560), (2160, 59337), (2280, 56214), (2430, 52744), (2565, 49968), (2736, 46845), (2776, 46170), (3078, 41640), (3123, 41040), (3240, 39558), (3420, 37476), (3470, 36936), (3888, 32965), (4104, 31230), (4164, 30780), (4560, 28107), (4617, 27760), (4860, 26372), (5130, 24984), (5205, 24624), (5552, 23085), (6156, 20820), (6246, 20520), (6480, 19779), (6593, 19440), (6840, 18738), (6940, 18468), (7695, 16656), (8208, 15615), (8328, 15390), (9234, 13880), (9369, 13680), (9720, 13186), (10260, 12492), (10410, 12312)]