257772438

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{163}}^2$

素因数の和:359

約数の個数: 108

約数和(自身を含む): 713129508

約数和(自身を除く): 455357070

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 49, 63, 66, 77, 98, 99, 126, 147, 154, 163, 198, 231, 294, 326, 441, 462, 489, 539, 693, 882, 978, 1078, 1141, 1386, 1467, 1617, 1793, 2282, 2934, 3234, 3423, 3586, 4851, 5379, 6846, 7987, 9702, 10269, 10758, 12551, 15974, 16137, 20538, 23961, 25102, 26569, 32274, 37653, 47922, 53138, 71883, 75306, 79707, 87857, 112959, 143766, 159414, 175714, 185983, 225918, 239121, 263571, 292259, 371966, 478242, 527142, 557949, 584518, 790713, 876777, 1115898, 1301881, 1581426, 1673847, 1753554, 2045813, 2603762, 2630331, 3347694, 3905643, 4091626, 5260662, 6137439, 7811286, 11716929, 12274878, 14320691, 18412317, 23433858, 28641382, 36824634, 42962073, 85924146, 128886219, 257772438]

約数ペア:

[(1, 257772438), (2, 128886219), (3, 85924146), (6, 42962073), (7, 36824634), (9, 28641382), (11, 23433858), (14, 18412317), (18, 14320691), (21, 12274878), (22, 11716929), (33, 7811286), (42, 6137439), (49, 5260662), (63, 4091626), (66, 3905643), (77, 3347694), (98, 2630331), (99, 2603762), (126, 2045813), (147, 1753554), (154, 1673847), (163, 1581426), (198, 1301881), (231, 1115898), (294, 876777), (326, 790713), (441, 584518), (462, 557949), (489, 527142), (539, 478242), (693, 371966), (882, 292259), (978, 263571), (1078, 239121), (1141, 225918), (1386, 185983), (1467, 175714), (1617, 159414), (1793, 143766), (2282, 112959), (2934, 87857), (3234, 79707), (3423, 75306), (3586, 71883), (4851, 53138), (5379, 47922), (6846, 37653), (7987, 32274), (9702, 26569), (10269, 25102), (10758, 23961), (12551, 20538), (15974, 16137)]