256375245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{56783}}^1$

素因数の和:56841

約数の個数: 32

約数和(自身を含む): 479711232

約数和(自身を除く): 223335987

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 4515, 56783, 170349, 283915, 397481, 851745, 1192443, 1987405, 2441669, 5962215, 7325007, 12208345, 17091683, 36625035, 51275049, 85458415, 256375245]

約数ペア:

[(1, 256375245), (3, 85458415), (5, 51275049), (7, 36625035), (15, 17091683), (21, 12208345), (35, 7325007), (43, 5962215), (105, 2441669), (129, 1987405), (215, 1192443), (301, 851745), (645, 397481), (903, 283915), (1505, 170349), (4515, 56783)]