261922472

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^3\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 583664640

約数和(自身を除く): 321742168

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 157, 217, 248, 314, 434, 628, 868, 961, 1099, 1256, 1736, 1922, 2198, 3844, 4396, 4867, 6727, 7688, 8792, 9734, 13454, 19468, 26908, 29791, 34069, 38936, 53816, 59582, 68138, 119164, 136276, 150877, 208537, 238328, 272552, 301754, 417074, 603508, 834148, 1056139, 1207016, 1668296, 2112278, 4224556, 4677187, 8449112, 9354374, 18708748, 32740309, 37417496, 65480618, 130961236, 261922472]

約数ペア:

[(1, 261922472), (2, 130961236), (4, 65480618), (7, 37417496), (8, 32740309), (14, 18708748), (28, 9354374), (31, 8449112), (56, 4677187), (62, 4224556), (124, 2112278), (157, 1668296), (217, 1207016), (248, 1056139), (314, 834148), (434, 603508), (628, 417074), (868, 301754), (961, 272552), (1099, 238328), (1256, 208537), (1736, 150877), (1922, 136276), (2198, 119164), (3844, 68138), (4396, 59582), (4867, 53816), (6727, 38936), (7688, 34069), (8792, 29791), (9734, 26908), (13454, 19468)]