258996815

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{5297}}^1$

素因数の和:5447

約数の個数: 32

約数和(自身を含む): 390610944

約数和(自身を除く): 131614129

約数列:

[1, 5, 7, 11, 35, 55, 77, 127, 385, 635, 889, 1397, 4445, 5297, 6985, 9779, 26485, 37079, 48895, 58267, 185395, 291335, 407869, 672719, 2039345, 3363595, 4709033, 7399909, 23545165, 36999545, 51799363, 258996815]

約数ペア:

[(1, 258996815), (5, 51799363), (7, 36999545), (11, 23545165), (35, 7399909), (55, 4709033), (77, 3363595), (127, 2039345), (385, 672719), (635, 407869), (889, 291335), (1397, 185395), (4445, 58267), (5297, 48895), (6985, 37079), (9779, 26485)]