638049355

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{857}}^1$

素因数の和:1359

約数の個数: 32

約数和(自身を含む): 856215360

約数和(自身を除く): 218166005

約数列:

[1, 5, 17, 19, 85, 95, 323, 461, 857, 1615, 2305, 4285, 7837, 8759, 14569, 16283, 39185, 43795, 72845, 81415, 148903, 276811, 395077, 744515, 1384055, 1975385, 6716309, 7506463, 33581545, 37532315, 127609871, 638049355]

約数ペア:

[(1, 638049355), (5, 127609871), (17, 37532315), (19, 33581545), (85, 7506463), (95, 6716309), (323, 1975385), (461, 1384055), (857, 744515), (1615, 395077), (2305, 276811), (4285, 148903), (7837, 81415), (8759, 72845), (14569, 43795), (16283, 39185)]