257860232

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{148537}}^1$

素因数の和:148581

約数の個数: 32

約数和(自身を含む): 570385920

約数和(自身を除く): 312525688

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 148537, 297074, 594148, 1039759, 1188296, 2079518, 4159036, 4604647, 8318072, 9209294, 18418588, 32232529, 36837176, 64465058, 128930116, 257860232]

約数ペア:

[(1, 257860232), (2, 128930116), (4, 64465058), (7, 36837176), (8, 32232529), (14, 18418588), (28, 9209294), (31, 8318072), (56, 4604647), (62, 4159036), (124, 2079518), (217, 1188296), (248, 1039759), (434, 594148), (868, 297074), (1736, 148537)]