About the Number

129981280

129981279 ← → 129981281

2進数表記:111101111110101101101100000

漢数字表記:一億二千九百九十八万千二百八十

素因数分解:

2 5 × 5 1 × 11 1 × 13 2 × 19 1 × 23 1

素因数の和:94
約数の個数: 288
約数和(自身を含む): 398442240
約数和(自身を除く): 268460960

約数列:
[1, 2, 4, 5, 8, 10, 11, 13, 16, 19, 20, 22, 23, 26, 32, 38, 40, 44, 46, 52, 55, 65, 76, 80, 88, 92, 95, 104, 110, 115, 130, 143, 152, 160, 169, 176, 184, 190, 208, 209, 220, 230, 247, 253, 260, 286, 299, 304, 338, 352, 368, 380, 416, 418, 437, 440, 460, 494, 506, 520, 572, 598, 608, 676, 715, 736, 760, 836, 845, 874, 880, 920, 988, 1012, 1040, 1045, 1144, 1196, 1235, 1265, 1352, 1430, 1495, 1520, 1672, 1690, 1748, 1760, 1840, 1859, 1976, 2024, 2080, 2090, 2185, 2288, 2392, 2470, 2530, 2704, 2717, 2860, 2990, 3040, 3211, 3289, 3344, 3380, 3496, 3680, 3718, 3887, 3952, 4048, 4180, 4370, 4576, 4784, 4807, 4940, 5060, 5408, 5434, 5681, 5720, 5980, 6422, 6578, 6688, 6760, 6992, 7436, 7774, 7904, 8096, 8360, 8740, 9295, 9568, 9614, 9880, 10120, 10868, 11362, 11440, 11960, 12844, 13156, 13520, 13585, 13984, 14872, 15548, 16055, 16445, 16720, 17480, 18590, 19228, 19435, 19760, 20240, 21736, 22724, 22880, 23920, 24035, 25688, 26312, 27040, 27170, 28405, 29744, 31096, 32110, 32890, 33440, 34960, 35321, 37180, 38456, 38870, 39520, 40480, 42757, 43472, 45448, 47840, 48070, 51376, 52624, 54340, 56810, 59488, 62192, 62491, 64220, 65780, 69920, 70642, 73853, 74360, 76912, 77740, 85514, 86944, 90896, 96140, 102752, 105248, 108680, 113620, 124384, 124982, 128440, 131560, 141284, 147706, 148720, 153824, 155480, 171028, 176605, 181792, 192280, 213785, 217360, 227240, 249964, 256880, 263120, 282568, 295412, 297440, 310960, 312455, 342056, 353210, 369265, 384560, 427570, 434720, 454480, 499928, 513760, 526240, 565136, 590824, 621920, 624910, 684112, 706420, 738530, 769120, 812383, 855140, 908960, 999856, 1130272, 1181648, 1249820, 1368224, 1412840, 1477060, 1624766, 1710280, 1999712, 2363296, 2499640, 2825680, 2954120, 3249532, 3420560, 4061915, 4999280, 5651360, 5908240, 6499064, 6841120, 8123830, 9998560, 11816480, 12998128, 16247660, 25996256, 32495320, 64990640, 129981280]

約数ペア:
[(1, 129981280), (2, 64990640), (4, 32495320), (5, 25996256), (8, 16247660), (10, 12998128), (11, 11816480), (13, 9998560), (16, 8123830), (19, 6841120), (20, 6499064), (22, 5908240), (23, 5651360), (26, 4999280), (32, 4061915), (38, 3420560), (40, 3249532), (44, 2954120), (46, 2825680), (52, 2499640), (55, 2363296), (65, 1999712), (76, 1710280), (80, 1624766), (88, 1477060), (92, 1412840), (95, 1368224), (104, 1249820), (110, 1181648), (115, 1130272), (130, 999856), (143, 908960), (152, 855140), (160, 812383), (169, 769120), (176, 738530), (184, 706420), (190, 684112), (208, 624910), (209, 621920), (220, 590824), (230, 565136), (247, 526240), (253, 513760), (260, 499928), (286, 454480), (299, 434720), (304, 427570), (338, 384560), (352, 369265), (368, 353210), (380, 342056), (416, 312455), (418, 310960), (437, 297440), (440, 295412), (460, 282568), (494, 263120), (506, 256880), (520, 249964), (572, 227240), (598, 217360), (608, 213785), (676, 192280), (715, 181792), (736, 176605), (760, 171028), (836, 155480), (845, 153824), (874, 148720), (880, 147706), (920, 141284), (988, 131560), (1012, 128440), (1040, 124982), (1045, 124384), (1144, 113620), (1196, 108680), (1235, 105248), (1265, 102752), (1352, 96140), (1430, 90896), (1495, 86944), (1520, 85514), (1672, 77740), (1690, 76912), (1748, 74360), (1760, 73853), (1840, 70642), (1859, 69920), (1976, 65780), (2024, 64220), (2080, 62491), (2090, 62192), (2185, 59488), (2288, 56810), (2392, 54340), (2470, 52624), (2530, 51376), (2704, 48070), (2717, 47840), (2860, 45448), (2990, 43472), (3040, 42757), (3211, 40480), (3289, 39520), (3344, 38870), (3380, 38456), (3496, 37180), (3680, 35321), (3718, 34960), (3887, 33440), (3952, 32890), (4048, 32110), (4180, 31096), (4370, 29744), (4576, 28405), (4784, 27170), (4807, 27040), (4940, 26312), (5060, 25688), (5408, 24035), (5434, 23920), (5681, 22880), (5720, 22724), (5980, 21736), (6422, 20240), (6578, 19760), (6688, 19435), (6760, 19228), (6992, 18590), (7436, 17480), (7774, 16720), (7904, 16445), (8096, 16055), (8360, 15548), (8740, 14872), (9295, 13984), (9568, 13585), (9614, 13520), (9880, 13156), (10120, 12844), (10868, 11960), (11362, 11440)]

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