845780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3253}}^1$

素因数の和:3275

約数の個数: 24

約数和(自身を含む): 1913352

約数和(自身を除く): 1067572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 3253, 6506, 13012, 16265, 32530, 42289, 65060, 84578, 169156, 211445, 422890, 845780]

約数ペア:

[(1, 845780), (2, 422890), (4, 211445), (5, 169156), (10, 84578), (13, 65060), (20, 42289), (26, 32530), (52, 16265), (65, 13012), (130, 6506), (260, 3253)]