20161958480

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{40933}}^1$

素因数の和:41124

約数の個数: 80

約数和(自身を含む): 48240555264

約数和(自身を除く): 28078596784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 131, 188, 235, 262, 376, 470, 524, 655, 752, 940, 1048, 1310, 1880, 2096, 2620, 3760, 5240, 6157, 10480, 12314, 24628, 30785, 40933, 49256, 61570, 81866, 98512, 123140, 163732, 204665, 246280, 327464, 409330, 492560, 654928, 818660, 1637320, 1923851, 3274640, 3847702, 5362223, 7695404, 9619255, 10724446, 15390808, 19238510, 21448892, 26811115, 30781616, 38477020, 42897784, 53622230, 76954040, 85795568, 107244460, 153908080, 214488920, 252024481, 428977840, 504048962, 1008097924, 1260122405, 2016195848, 2520244810, 4032391696, 5040489620, 10080979240, 20161958480]

約数ペア:

[(1, 20161958480), (2, 10080979240), (4, 5040489620), (5, 4032391696), (8, 2520244810), (10, 2016195848), (16, 1260122405), (20, 1008097924), (40, 504048962), (47, 428977840), (80, 252024481), (94, 214488920), (131, 153908080), (188, 107244460), (235, 85795568), (262, 76954040), (376, 53622230), (470, 42897784), (524, 38477020), (655, 30781616), (752, 26811115), (940, 21448892), (1048, 19238510), (1310, 15390808), (1880, 10724446), (2096, 9619255), (2620, 7695404), (3760, 5362223), (5240, 3847702), (6157, 3274640), (10480, 1923851), (12314, 1637320), (24628, 818660), (30785, 654928), (40933, 492560), (49256, 409330), (61570, 327464), (81866, 246280), (98512, 204665), (123140, 163732)]