306407140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{269}}^1\times {\mathrm{337}}^1$

素因数の和:641

約数の個数: 72

約数和(自身を含む): 701424360

約数和(自身を除く): 395017220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 269, 337, 338, 538, 674, 676, 845, 1076, 1345, 1348, 1685, 1690, 2690, 3370, 3380, 3497, 4381, 5380, 6740, 6994, 8762, 13988, 17485, 17524, 21905, 34970, 43810, 45461, 56953, 69940, 87620, 90653, 90922, 113906, 181306, 181844, 227305, 227812, 284765, 362612, 453265, 454610, 569530, 906530, 909220, 1139060, 1178489, 1813060, 2356978, 4713956, 5892445, 11784890, 15320357, 23569780, 30640714, 61281428, 76601785, 153203570, 306407140]

約数ペア:

[(1, 306407140), (2, 153203570), (4, 76601785), (5, 61281428), (10, 30640714), (13, 23569780), (20, 15320357), (26, 11784890), (52, 5892445), (65, 4713956), (130, 2356978), (169, 1813060), (260, 1178489), (269, 1139060), (337, 909220), (338, 906530), (538, 569530), (674, 454610), (676, 453265), (845, 362612), (1076, 284765), (1345, 227812), (1348, 227305), (1685, 181844), (1690, 181306), (2690, 113906), (3370, 90922), (3380, 90653), (3497, 87620), (4381, 69940), (5380, 56953), (6740, 45461), (6994, 43810), (8762, 34970), (13988, 21905), (17485, 17524)]