81980160

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:638

約数の個数: 144

約数和(自身を含む): 269366496

約数和(自身を除く): 187386336

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, 128, 148, 160, 185, 192, 222, 240, 256, 296, 320, 370, 384, 444, 480, 555, 577, 592, 640, 740, 768, 888, 960, 1110, 1154, 1184, 1280, 1480, 1731, 1776, 1920, 2220, 2308, 2368, 2885, 2960, 3462, 3552, 3840, 4440, 4616, 4736, 5770, 5920, 6924, 7104, 8655, 8880, 9232, 9472, 11540, 11840, 13848, 14208, 17310, 17760, 18464, 21349, 23080, 23680, 27696, 28416, 34620, 35520, 36928, 42698, 46160, 47360, 55392, 64047, 69240, 71040, 73856, 85396, 92320, 106745, 110784, 128094, 138480, 142080, 147712, 170792, 184640, 213490, 221568, 256188, 276960, 320235, 341584, 369280, 426980, 443136, 512376, 553920, 640470, 683168, 738560, 853960, 1024752, 1107840, 1280940, 1366336, 1707920, 2049504, 2215680, 2561880, 2732672, 3415840, 4099008, 5123760, 5465344, 6831680, 8198016, 10247520, 13663360, 16396032, 20495040, 27326720, 40990080, 81980160]

約数ペア:

[(1, 81980160), (2, 40990080), (3, 27326720), (4, 20495040), (5, 16396032), (6, 13663360), (8, 10247520), (10, 8198016), (12, 6831680), (15, 5465344), (16, 5123760), (20, 4099008), (24, 3415840), (30, 2732672), (32, 2561880), (37, 2215680), (40, 2049504), (48, 1707920), (60, 1366336), (64, 1280940), (74, 1107840), (80, 1024752), (96, 853960), (111, 738560), (120, 683168), (128, 640470), (148, 553920), (160, 512376), (185, 443136), (192, 426980), (222, 369280), (240, 341584), (256, 320235), (296, 276960), (320, 256188), (370, 221568), (384, 213490), (444, 184640), (480, 170792), (555, 147712), (577, 142080), (592, 138480), (640, 128094), (740, 110784), (768, 106745), (888, 92320), (960, 85396), (1110, 73856), (1154, 71040), (1184, 69240), (1280, 64047), (1480, 55392), (1731, 47360), (1776, 46160), (1920, 42698), (2220, 36928), (2308, 35520), (2368, 34620), (2885, 28416), (2960, 27696), (3462, 23680), (3552, 23080), (3840, 21349), (4440, 18464), (4616, 17760), (4736, 17310), (5770, 14208), (5920, 13848), (6924, 11840), (7104, 11540), (8655, 9472), (8880, 9232)]