81541404

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:409

約数の個数: 120

約数和(自身を含む): 246239840

約数和(自身を除く): 164698436

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 157, 162, 189, 229, 252, 314, 324, 378, 458, 471, 567, 628, 687, 756, 916, 942, 1099, 1134, 1374, 1413, 1603, 1884, 2061, 2198, 2268, 2748, 2826, 3206, 3297, 4122, 4239, 4396, 4809, 5652, 6183, 6412, 6594, 8244, 8478, 9618, 9891, 12366, 12717, 13188, 14427, 16956, 18549, 19236, 19782, 24732, 25434, 28854, 29673, 35953, 37098, 39564, 43281, 50868, 57708, 59346, 71906, 74196, 86562, 89019, 107859, 118692, 129843, 143812, 173124, 178038, 215718, 251671, 259686, 323577, 356076, 431436, 503342, 519372, 647154, 755013, 970731, 1006684, 1294308, 1510026, 1941462, 2265039, 2912193, 3020052, 3882924, 4530078, 5824386, 6795117, 9060156, 11648772, 13590234, 20385351, 27180468, 40770702, 81541404]

約数ペア:

[(1, 81541404), (2, 40770702), (3, 27180468), (4, 20385351), (6, 13590234), (7, 11648772), (9, 9060156), (12, 6795117), (14, 5824386), (18, 4530078), (21, 3882924), (27, 3020052), (28, 2912193), (36, 2265039), (42, 1941462), (54, 1510026), (63, 1294308), (81, 1006684), (84, 970731), (108, 755013), (126, 647154), (157, 519372), (162, 503342), (189, 431436), (229, 356076), (252, 323577), (314, 259686), (324, 251671), (378, 215718), (458, 178038), (471, 173124), (567, 143812), (628, 129843), (687, 118692), (756, 107859), (916, 89019), (942, 86562), (1099, 74196), (1134, 71906), (1374, 59346), (1413, 57708), (1603, 50868), (1884, 43281), (2061, 39564), (2198, 37098), (2268, 35953), (2748, 29673), (2826, 28854), (3206, 25434), (3297, 24732), (4122, 19782), (4239, 19236), (4396, 18549), (4809, 16956), (5652, 14427), (6183, 13188), (6412, 12717), (6594, 12366), (8244, 9891), (8478, 9618)]