209804560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12919}}^1$

素因数の和:12968

約数の個数: 80

約数和(自身を含む): 576748800

約数和(自身を除く): 366944240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1624, 2030, 2320, 3248, 4060, 8120, 12919, 16240, 25838, 51676, 64595, 90433, 103352, 129190, 180866, 206704, 258380, 361732, 374651, 452165, 516760, 723464, 749302, 904330, 1033520, 1446928, 1498604, 1808660, 1873255, 2622557, 2997208, 3617320, 3746510, 5245114, 5994416, 7234640, 7493020, 10490228, 13112785, 14986040, 20980456, 26225570, 29972080, 41960912, 52451140, 104902280, 209804560]

約数ペア:

[(1, 209804560), (2, 104902280), (4, 52451140), (5, 41960912), (7, 29972080), (8, 26225570), (10, 20980456), (14, 14986040), (16, 13112785), (20, 10490228), (28, 7493020), (29, 7234640), (35, 5994416), (40, 5245114), (56, 3746510), (58, 3617320), (70, 2997208), (80, 2622557), (112, 1873255), (116, 1808660), (140, 1498604), (145, 1446928), (203, 1033520), (232, 904330), (280, 749302), (290, 723464), (406, 516760), (464, 452165), (560, 374651), (580, 361732), (812, 258380), (1015, 206704), (1160, 180866), (1624, 129190), (2030, 103352), (2320, 90433), (3248, 64595), (4060, 51676), (8120, 25838), (12919, 16240)]