81492420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:421

約数の個数: 96

約数和(自身を含む): 236347776

約数和(自身を除く): 154855356

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 157, 164, 205, 211, 246, 314, 410, 422, 471, 492, 615, 628, 633, 785, 820, 844, 942, 1055, 1230, 1266, 1570, 1884, 2110, 2355, 2460, 2532, 3140, 3165, 4220, 4710, 6330, 6437, 8651, 9420, 12660, 12874, 17302, 19311, 25748, 25953, 32185, 33127, 34604, 38622, 43255, 51906, 64370, 66254, 77244, 86510, 96555, 99381, 103812, 128740, 129765, 132508, 165635, 173020, 193110, 198762, 259530, 331270, 386220, 397524, 496905, 519060, 662540, 993810, 1358207, 1987620, 2716414, 4074621, 5432828, 6791035, 8149242, 13582070, 16298484, 20373105, 27164140, 40746210, 81492420]

約数ペア:

[(1, 81492420), (2, 40746210), (3, 27164140), (4, 20373105), (5, 16298484), (6, 13582070), (10, 8149242), (12, 6791035), (15, 5432828), (20, 4074621), (30, 2716414), (41, 1987620), (60, 1358207), (82, 993810), (123, 662540), (157, 519060), (164, 496905), (205, 397524), (211, 386220), (246, 331270), (314, 259530), (410, 198762), (422, 193110), (471, 173020), (492, 165635), (615, 132508), (628, 129765), (633, 128740), (785, 103812), (820, 99381), (844, 96555), (942, 86510), (1055, 77244), (1230, 66254), (1266, 64370), (1570, 51906), (1884, 43255), (2110, 38622), (2355, 34604), (2460, 33127), (2532, 32185), (3140, 25953), (3165, 25748), (4220, 19311), (4710, 17302), (6330, 12874), (6437, 12660), (8651, 9420)]