257466188

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1471}}^1$

素因数の和:1555

約数の個数: 72

約数和(自身を含む): 563834880

約数和(自身を除く): 306368692

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 47, 49, 76, 94, 98, 133, 188, 196, 266, 329, 532, 658, 893, 931, 1316, 1471, 1786, 1862, 2303, 2942, 3572, 3724, 4606, 5884, 6251, 9212, 10297, 12502, 20594, 25004, 27949, 41188, 43757, 55898, 69137, 72079, 87514, 111796, 138274, 144158, 175028, 195643, 276548, 288316, 391286, 483959, 782572, 967918, 1313603, 1369501, 1935836, 2627206, 2739002, 3387713, 5254412, 5478004, 6775426, 9195221, 13550852, 18390442, 36780884, 64366547, 128733094, 257466188]

約数ペア:

[(1, 257466188), (2, 128733094), (4, 64366547), (7, 36780884), (14, 18390442), (19, 13550852), (28, 9195221), (38, 6775426), (47, 5478004), (49, 5254412), (76, 3387713), (94, 2739002), (98, 2627206), (133, 1935836), (188, 1369501), (196, 1313603), (266, 967918), (329, 782572), (532, 483959), (658, 391286), (893, 288316), (931, 276548), (1316, 195643), (1471, 175028), (1786, 144158), (1862, 138274), (2303, 111796), (2942, 87514), (3572, 72079), (3724, 69137), (4606, 55898), (5884, 43757), (6251, 41188), (9212, 27949), (10297, 25004), (12502, 20594)]