64938260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79193}}^1$

素因数の和:79243

約数の個数: 24

約数和(自身を含む): 139698216

約数和(自身を除く): 74759956

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 79193, 158386, 316772, 395965, 791930, 1583860, 3246913, 6493826, 12987652, 16234565, 32469130, 64938260]

約数ペア:

[(1, 64938260), (2, 32469130), (4, 16234565), (5, 12987652), (10, 6493826), (20, 3246913), (41, 1583860), (82, 791930), (164, 395965), (205, 316772), (410, 158386), (820, 79193)]