648856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{367}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 1391040

約数和(自身を除く): 742184

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 367, 442, 734, 884, 1468, 1768, 2936, 4771, 6239, 9542, 12478, 19084, 24956, 38168, 49912, 81107, 162214, 324428, 648856]

約数ペア:

[(1, 648856), (2, 324428), (4, 162214), (8, 81107), (13, 49912), (17, 38168), (26, 24956), (34, 19084), (52, 12478), (68, 9542), (104, 6239), (136, 4771), (221, 2936), (367, 1768), (442, 1468), (734, 884)]