20164798720

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{38707}}^1$

素因数の和:38776

約数の個数: 144

約数和(自身を含む): 54117499968

約数和(自身を除く): 33952701248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 64, 74, 80, 88, 110, 128, 148, 160, 176, 185, 220, 256, 296, 320, 352, 370, 407, 440, 592, 640, 704, 740, 814, 880, 1184, 1280, 1408, 1480, 1628, 1760, 2035, 2368, 2816, 2960, 3256, 3520, 4070, 4736, 5920, 6512, 7040, 8140, 9472, 11840, 13024, 14080, 16280, 23680, 26048, 32560, 38707, 47360, 52096, 65120, 77414, 104192, 130240, 154828, 193535, 260480, 309656, 387070, 425777, 520960, 619312, 774140, 851554, 1238624, 1432159, 1548280, 1703108, 2128885, 2477248, 2864318, 3096560, 3406216, 4257770, 4954496, 5728636, 6193120, 6812432, 7160795, 8515540, 9908992, 11457272, 12386240, 13624864, 14321590, 15753749, 17031080, 22914544, 24772480, 27249728, 28643180, 31507498, 34062160, 45829088, 49544960, 54499456, 57286360, 63014996, 68124320, 78768745, 91658176, 108998912, 114572720, 126029992, 136248640, 157537490, 183316352, 229145440, 252059984, 272497280, 315074980, 366632704, 458290880, 504119968, 544994560, 630149960, 916581760, 1008239936, 1260299920, 1833163520, 2016479872, 2520599840, 4032959744, 5041199680, 10082399360, 20164798720]

約数ペア:

[(1, 20164798720), (2, 10082399360), (4, 5041199680), (5, 4032959744), (8, 2520599840), (10, 2016479872), (11, 1833163520), (16, 1260299920), (20, 1008239936), (22, 916581760), (32, 630149960), (37, 544994560), (40, 504119968), (44, 458290880), (55, 366632704), (64, 315074980), (74, 272497280), (80, 252059984), (88, 229145440), (110, 183316352), (128, 157537490), (148, 136248640), (160, 126029992), (176, 114572720), (185, 108998912), (220, 91658176), (256, 78768745), (296, 68124320), (320, 63014996), (352, 57286360), (370, 54499456), (407, 49544960), (440, 45829088), (592, 34062160), (640, 31507498), (704, 28643180), (740, 27249728), (814, 24772480), (880, 22914544), (1184, 17031080), (1280, 15753749), (1408, 14321590), (1480, 13624864), (1628, 12386240), (1760, 11457272), (2035, 9908992), (2368, 8515540), (2816, 7160795), (2960, 6812432), (3256, 6193120), (3520, 5728636), (4070, 4954496), (4736, 4257770), (5920, 3406216), (6512, 3096560), (7040, 2864318), (8140, 2477248), (9472, 2128885), (11840, 1703108), (13024, 1548280), (14080, 1432159), (16280, 1238624), (23680, 851554), (26048, 774140), (32560, 619312), (38707, 520960), (47360, 425777), (52096, 387070), (65120, 309656), (77414, 260480), (104192, 193535), (130240, 154828)]