257203030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{257}}^1$

素因数の和:346

約数の個数: 96

約数和(自身を含む): 582469056

約数和(自身を除く): 325266026

約数列:

[1, 2, 5, 7, 10, 14, 17, 29, 34, 35, 58, 70, 85, 119, 145, 170, 203, 238, 257, 290, 406, 493, 514, 595, 841, 986, 1015, 1190, 1285, 1682, 1799, 2030, 2465, 2570, 3451, 3598, 4205, 4369, 4930, 5887, 6902, 7453, 8410, 8738, 8995, 11774, 14297, 14906, 17255, 17990, 21845, 28594, 29435, 30583, 34510, 37265, 43690, 52171, 58870, 61166, 71485, 74530, 100079, 104342, 126701, 142970, 152915, 200158, 216137, 253402, 260855, 305830, 432274, 500395, 521710, 633505, 886907, 1000790, 1080685, 1267010, 1512959, 1773814, 2161370, 3025918, 3674329, 4434535, 7348658, 7564795, 8869070, 15129590, 18371645, 25720303, 36743290, 51440606, 128601515, 257203030]

約数ペア:

[(1, 257203030), (2, 128601515), (5, 51440606), (7, 36743290), (10, 25720303), (14, 18371645), (17, 15129590), (29, 8869070), (34, 7564795), (35, 7348658), (58, 4434535), (70, 3674329), (85, 3025918), (119, 2161370), (145, 1773814), (170, 1512959), (203, 1267010), (238, 1080685), (257, 1000790), (290, 886907), (406, 633505), (493, 521710), (514, 500395), (595, 432274), (841, 305830), (986, 260855), (1015, 253402), (1190, 216137), (1285, 200158), (1682, 152915), (1799, 142970), (2030, 126701), (2465, 104342), (2570, 100079), (3451, 74530), (3598, 71485), (4205, 61166), (4369, 58870), (4930, 52171), (5887, 43690), (6902, 37265), (7453, 34510), (8410, 30583), (8738, 29435), (8995, 28594), (11774, 21845), (14297, 17990), (14906, 17255)]