256104290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{11657}}^1$

素因数の和:11703

約数の個数: 32

約数和(自身を含む): 499428720

約数和(自身を除く): 243324430

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 2197, 4394, 10985, 11657, 21970, 23314, 58285, 116570, 151541, 303082, 757705, 1515410, 1970033, 3940066, 9850165, 19700330, 25610429, 51220858, 128052145, 256104290]

約数ペア:

[(1, 256104290), (2, 128052145), (5, 51220858), (10, 25610429), (13, 19700330), (26, 9850165), (65, 3940066), (130, 1970033), (169, 1515410), (338, 757705), (845, 303082), (1690, 151541), (2197, 116570), (4394, 58285), (10985, 23314), (11657, 21970)]