128220455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4231}}^1$

素因数の和:4295

約数の個数: 32

約数和(自身を含む): 182822400

約数和(自身を除く): 54601945

約数列:

[1, 5, 11, 19, 29, 55, 95, 145, 209, 319, 551, 1045, 1595, 2755, 4231, 6061, 21155, 30305, 46541, 80389, 122699, 232705, 401945, 613495, 884279, 1349689, 2331281, 4421395, 6748445, 11656405, 25644091, 128220455]

約数ペア:

[(1, 128220455), (5, 25644091), (11, 11656405), (19, 6748445), (29, 4421395), (55, 2331281), (95, 1349689), (145, 884279), (209, 613495), (319, 401945), (551, 232705), (1045, 122699), (1595, 80389), (2755, 46541), (4231, 30305), (6061, 21155)]