42439900

素因数分解:

$2^2\times 5^2\times {\mathrm{389}}^1\times {\mathrm{1091}}^1$

素因数の和:1494

約数の個数: 36

約数和(自身を含む): 92415960

約数和(自身を除く): 49976060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 389, 778, 1091, 1556, 1945, 2182, 3890, 4364, 5455, 7780, 9725, 10910, 19450, 21820, 27275, 38900, 54550, 109100, 424399, 848798, 1697596, 2121995, 4243990, 8487980, 10609975, 21219950, 42439900]

約数ペア:

[(1, 42439900), (2, 21219950), (4, 10609975), (5, 8487980), (10, 4243990), (20, 2121995), (25, 1697596), (50, 848798), (100, 424399), (389, 109100), (778, 54550), (1091, 38900), (1556, 27275), (1945, 21820), (2182, 19450), (3890, 10910), (4364, 9725), (5455, 7780)]