81561186

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:229

約数の個数: 144

約数和(自身を含む): 224789760

約数和(自身を除く): 143228574

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 31, 38, 42, 49, 57, 62, 63, 93, 98, 114, 126, 133, 147, 157, 171, 186, 217, 266, 279, 294, 314, 342, 399, 434, 441, 471, 558, 589, 651, 798, 882, 931, 942, 1099, 1178, 1197, 1302, 1413, 1519, 1767, 1862, 1953, 2198, 2394, 2793, 2826, 2983, 3038, 3297, 3534, 3906, 4123, 4557, 4867, 5301, 5586, 5966, 6594, 7693, 8246, 8379, 8949, 9114, 9734, 9891, 10602, 12369, 13671, 14601, 15386, 16758, 17898, 19782, 20881, 23079, 24738, 26847, 27342, 28861, 29202, 34069, 37107, 41762, 43803, 46158, 53694, 57722, 62643, 68138, 69237, 74214, 86583, 87606, 92473, 102207, 125286, 138474, 146167, 173166, 184946, 187929, 204414, 238483, 259749, 277419, 292334, 306621, 375858, 438501, 476966, 519498, 554838, 613242, 647311, 715449, 832257, 877002, 1294622, 1315503, 1430898, 1664514, 1941933, 2146347, 2631006, 3883866, 4292694, 4531177, 5825799, 9062354, 11651598, 13593531, 27187062, 40780593, 81561186]

約数ペア:

[(1, 81561186), (2, 40780593), (3, 27187062), (6, 13593531), (7, 11651598), (9, 9062354), (14, 5825799), (18, 4531177), (19, 4292694), (21, 3883866), (31, 2631006), (38, 2146347), (42, 1941933), (49, 1664514), (57, 1430898), (62, 1315503), (63, 1294622), (93, 877002), (98, 832257), (114, 715449), (126, 647311), (133, 613242), (147, 554838), (157, 519498), (171, 476966), (186, 438501), (217, 375858), (266, 306621), (279, 292334), (294, 277419), (314, 259749), (342, 238483), (399, 204414), (434, 187929), (441, 184946), (471, 173166), (558, 146167), (589, 138474), (651, 125286), (798, 102207), (882, 92473), (931, 87606), (942, 86583), (1099, 74214), (1178, 69237), (1197, 68138), (1302, 62643), (1413, 57722), (1519, 53694), (1767, 46158), (1862, 43803), (1953, 41762), (2198, 37107), (2394, 34069), (2793, 29202), (2826, 28861), (2983, 27342), (3038, 26847), (3297, 24738), (3534, 23079), (3906, 20881), (4123, 19782), (4557, 17898), (4867, 16758), (5301, 15386), (5586, 14601), (5966, 13671), (6594, 12369), (7693, 10602), (8246, 9891), (8379, 9734), (8949, 9114)]