81125016

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 246312960

約数和(自身を除く): 165187944

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 37, 42, 56, 62, 74, 84, 93, 111, 124, 148, 168, 186, 217, 222, 248, 259, 296, 372, 421, 434, 444, 518, 651, 744, 777, 842, 868, 888, 1036, 1147, 1263, 1302, 1554, 1684, 1736, 2072, 2294, 2526, 2604, 2947, 3108, 3368, 3441, 4588, 5052, 5208, 5894, 6216, 6882, 8029, 8841, 9176, 10104, 11788, 13051, 13764, 15577, 16058, 17682, 23576, 24087, 26102, 27528, 31154, 32116, 35364, 39153, 46731, 48174, 52204, 62308, 64232, 70728, 78306, 91357, 93462, 96348, 104408, 109039, 124616, 156612, 182714, 186924, 192696, 218078, 274071, 313224, 327117, 365428, 373848, 436156, 482887, 548142, 654234, 730856, 872312, 965774, 1096284, 1308468, 1448661, 1931548, 2192568, 2616936, 2897322, 3380209, 3863096, 5794644, 6760418, 10140627, 11589288, 13520836, 20281254, 27041672, 40562508, 81125016]

約数ペア:

[(1, 81125016), (2, 40562508), (3, 27041672), (4, 20281254), (6, 13520836), (7, 11589288), (8, 10140627), (12, 6760418), (14, 5794644), (21, 3863096), (24, 3380209), (28, 2897322), (31, 2616936), (37, 2192568), (42, 1931548), (56, 1448661), (62, 1308468), (74, 1096284), (84, 965774), (93, 872312), (111, 730856), (124, 654234), (148, 548142), (168, 482887), (186, 436156), (217, 373848), (222, 365428), (248, 327117), (259, 313224), (296, 274071), (372, 218078), (421, 192696), (434, 186924), (444, 182714), (518, 156612), (651, 124616), (744, 109039), (777, 104408), (842, 96348), (868, 93462), (888, 91357), (1036, 78306), (1147, 70728), (1263, 64232), (1302, 62308), (1554, 52204), (1684, 48174), (1736, 46731), (2072, 39153), (2294, 35364), (2526, 32116), (2604, 31154), (2947, 27528), (3108, 26102), (3368, 24087), (3441, 23576), (4588, 17682), (5052, 16058), (5208, 15577), (5894, 13764), (6216, 13051), (6882, 11788), (8029, 10104), (8841, 9176)]