38990415

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{431}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 64613376

約数和(自身を除く): 25622961

約数列:

[1, 3, 5, 15, 37, 111, 163, 185, 431, 489, 555, 815, 1293, 2155, 2445, 6031, 6465, 15947, 18093, 30155, 47841, 70253, 79735, 90465, 210759, 239205, 351265, 1053795, 2599361, 7798083, 12996805, 38990415]

約数ペア:

[(1, 38990415), (3, 12996805), (5, 7798083), (15, 2599361), (37, 1053795), (111, 351265), (163, 239205), (185, 210759), (431, 90465), (489, 79735), (555, 70253), (815, 47841), (1293, 30155), (2155, 18093), (2445, 15947), (6031, 6465)]