20495040

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:634

約数の個数: 112

約数和(自身を含む): 66946272

約数和(自身を除く): 46451232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 148, 160, 185, 192, 222, 240, 296, 320, 370, 444, 480, 555, 577, 592, 740, 888, 960, 1110, 1154, 1184, 1480, 1731, 1776, 2220, 2308, 2368, 2885, 2960, 3462, 3552, 4440, 4616, 5770, 5920, 6924, 7104, 8655, 8880, 9232, 11540, 11840, 13848, 17310, 17760, 18464, 21349, 23080, 27696, 34620, 35520, 36928, 42698, 46160, 55392, 64047, 69240, 85396, 92320, 106745, 110784, 128094, 138480, 170792, 184640, 213490, 256188, 276960, 320235, 341584, 426980, 512376, 553920, 640470, 683168, 853960, 1024752, 1280940, 1366336, 1707920, 2049504, 2561880, 3415840, 4099008, 5123760, 6831680, 10247520, 20495040]

約数ペア:

[(1, 20495040), (2, 10247520), (3, 6831680), (4, 5123760), (5, 4099008), (6, 3415840), (8, 2561880), (10, 2049504), (12, 1707920), (15, 1366336), (16, 1280940), (20, 1024752), (24, 853960), (30, 683168), (32, 640470), (37, 553920), (40, 512376), (48, 426980), (60, 341584), (64, 320235), (74, 276960), (80, 256188), (96, 213490), (111, 184640), (120, 170792), (148, 138480), (160, 128094), (185, 110784), (192, 106745), (222, 92320), (240, 85396), (296, 69240), (320, 64047), (370, 55392), (444, 46160), (480, 42698), (555, 36928), (577, 35520), (592, 34620), (740, 27696), (888, 23080), (960, 21349), (1110, 18464), (1154, 17760), (1184, 17310), (1480, 13848), (1731, 11840), (1776, 11540), (2220, 9232), (2308, 8880), (2368, 8655), (2885, 7104), (2960, 6924), (3462, 5920), (3552, 5770), (4440, 4616)]