About the Number

2120018880

2120018879 ← → 2120018881

2進数表記:1111110010111001110101111000000

漢数字表記:二十一億二千一万八千八百八十

素因数分解:

2 6 × 3 1 × 5 1 × 7 1 × 389 1 × 811 1

素因数の和:1227
約数の個数: 224
約数和(自身を含む): 7721925120
約数和(自身を除く): 5601906240

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 389, 420, 448, 480, 560, 672, 778, 811, 840, 960, 1120, 1167, 1344, 1556, 1622, 1680, 1945, 2240, 2334, 2433, 2723, 3112, 3244, 3360, 3890, 4055, 4668, 4866, 5446, 5677, 5835, 6224, 6488, 6720, 7780, 8110, 8169, 9336, 9732, 10892, 11354, 11670, 12165, 12448, 12976, 13615, 15560, 16220, 16338, 17031, 18672, 19464, 21784, 22708, 23340, 24330, 24896, 25952, 27230, 28385, 31120, 32440, 32676, 34062, 37344, 38928, 40845, 43568, 45416, 46680, 48660, 51904, 54460, 56770, 62240, 64880, 65352, 68124, 74688, 77856, 81690, 85155, 87136, 90832, 93360, 97320, 108920, 113540, 124480, 129760, 130704, 136248, 155712, 163380, 170310, 174272, 181664, 186720, 194640, 217840, 227080, 259520, 261408, 272496, 315479, 326760, 340620, 363328, 373440, 389280, 435680, 454160, 522816, 544992, 630958, 653520, 681240, 778560, 871360, 908320, 946437, 1089984, 1261916, 1307040, 1362480, 1577395, 1816640, 1892874, 2208353, 2523832, 2614080, 2724960, 3154790, 3785748, 4416706, 4732185, 5047664, 5449920, 6309580, 6625059, 7571496, 8833412, 9464370, 10095328, 11041765, 12619160, 13250118, 15142992, 17666824, 18928740, 20190656, 22083530, 25238320, 26500236, 30285984, 33125295, 35333648, 37857480, 44167060, 50476640, 53000472, 60571968, 66250590, 70667296, 75714960, 88334120, 100953280, 106000944, 132501180, 141334592, 151429920, 176668240, 212001888, 265002360, 302859840, 353336480, 424003776, 530004720, 706672960, 1060009440, 2120018880]

約数ペア:
[(1, 2120018880), (2, 1060009440), (3, 706672960), (4, 530004720), (5, 424003776), (6, 353336480), (7, 302859840), (8, 265002360), (10, 212001888), (12, 176668240), (14, 151429920), (15, 141334592), (16, 132501180), (20, 106000944), (21, 100953280), (24, 88334120), (28, 75714960), (30, 70667296), (32, 66250590), (35, 60571968), (40, 53000472), (42, 50476640), (48, 44167060), (56, 37857480), (60, 35333648), (64, 33125295), (70, 30285984), (80, 26500236), (84, 25238320), (96, 22083530), (105, 20190656), (112, 18928740), (120, 17666824), (140, 15142992), (160, 13250118), (168, 12619160), (192, 11041765), (210, 10095328), (224, 9464370), (240, 8833412), (280, 7571496), (320, 6625059), (336, 6309580), (389, 5449920), (420, 5047664), (448, 4732185), (480, 4416706), (560, 3785748), (672, 3154790), (778, 2724960), (811, 2614080), (840, 2523832), (960, 2208353), (1120, 1892874), (1167, 1816640), (1344, 1577395), (1556, 1362480), (1622, 1307040), (1680, 1261916), (1945, 1089984), (2240, 946437), (2334, 908320), (2433, 871360), (2723, 778560), (3112, 681240), (3244, 653520), (3360, 630958), (3890, 544992), (4055, 522816), (4668, 454160), (4866, 435680), (5446, 389280), (5677, 373440), (5835, 363328), (6224, 340620), (6488, 326760), (6720, 315479), (7780, 272496), (8110, 261408), (8169, 259520), (9336, 227080), (9732, 217840), (10892, 194640), (11354, 186720), (11670, 181664), (12165, 174272), (12448, 170310), (12976, 163380), (13615, 155712), (15560, 136248), (16220, 130704), (16338, 129760), (17031, 124480), (18672, 113540), (19464, 108920), (21784, 97320), (22708, 93360), (23340, 90832), (24330, 87136), (24896, 85155), (25952, 81690), (27230, 77856), (28385, 74688), (31120, 68124), (32440, 65352), (32676, 64880), (34062, 62240), (37344, 56770), (38928, 54460), (40845, 51904), (43568, 48660), (45416, 46680)]

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