81322360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41491}}^1$

素因数の和:41516

約数の個数: 48

約数和(自身を含む): 212853960

約数和(自身を除く): 131531600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 41491, 82982, 165964, 207455, 290437, 331928, 414910, 580874, 829820, 1161748, 1452185, 1659640, 2033059, 2323496, 2904370, 4066118, 5808740, 8132236, 10165295, 11617480, 16264472, 20330590, 40661180, 81322360]

約数ペア:

[(1, 81322360), (2, 40661180), (4, 20330590), (5, 16264472), (7, 11617480), (8, 10165295), (10, 8132236), (14, 5808740), (20, 4066118), (28, 2904370), (35, 2323496), (40, 2033059), (49, 1659640), (56, 1452185), (70, 1161748), (98, 829820), (140, 580874), (196, 414910), (245, 331928), (280, 290437), (392, 207455), (490, 165964), (980, 82982), (1960, 41491)]