320698719

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 520565760

約数和(自身を除く): 199867041

約数列:

[1, 3, 9, 11, 33, 47, 99, 141, 157, 423, 439, 471, 517, 1317, 1413, 1551, 1727, 3951, 4653, 4829, 5181, 7379, 14487, 15543, 20633, 22137, 43461, 61899, 66411, 68923, 81169, 185697, 206769, 226963, 243507, 620307, 680889, 730521, 758153, 2042667, 2274459, 3239381, 6823377, 9718143, 29154429, 35633191, 106899573, 320698719]

約数ペア:

[(1, 320698719), (3, 106899573), (9, 35633191), (11, 29154429), (33, 9718143), (47, 6823377), (99, 3239381), (141, 2274459), (157, 2042667), (423, 758153), (439, 730521), (471, 680889), (517, 620307), (1317, 243507), (1413, 226963), (1551, 206769), (1727, 185697), (3951, 81169), (4653, 68923), (4829, 66411), (5181, 61899), (7379, 43461), (14487, 22137), (15543, 20633)]