208068620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:375

約数の個数: 96

約数和(自身を含む): 483840000

約数和(自身を除く): 275771380

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 79, 95, 116, 145, 158, 190, 239, 290, 316, 380, 395, 478, 551, 580, 790, 956, 1102, 1195, 1501, 1580, 2204, 2291, 2390, 2755, 3002, 4541, 4582, 4780, 5510, 6004, 6931, 7505, 9082, 9164, 11020, 11455, 13862, 15010, 18164, 18881, 22705, 22910, 27724, 30020, 34655, 37762, 43529, 45410, 45820, 69310, 75524, 87058, 90820, 94405, 131689, 138620, 174116, 188810, 217645, 263378, 358739, 377620, 435290, 526756, 547549, 658445, 717478, 870580, 1095098, 1316890, 1434956, 1793695, 2190196, 2633780, 2737745, 3587390, 5475490, 7174780, 10403431, 10950980, 20806862, 41613724, 52017155, 104034310, 208068620]

約数ペア:

[(1, 208068620), (2, 104034310), (4, 52017155), (5, 41613724), (10, 20806862), (19, 10950980), (20, 10403431), (29, 7174780), (38, 5475490), (58, 3587390), (76, 2737745), (79, 2633780), (95, 2190196), (116, 1793695), (145, 1434956), (158, 1316890), (190, 1095098), (239, 870580), (290, 717478), (316, 658445), (380, 547549), (395, 526756), (478, 435290), (551, 377620), (580, 358739), (790, 263378), (956, 217645), (1102, 188810), (1195, 174116), (1501, 138620), (1580, 131689), (2204, 94405), (2291, 90820), (2390, 87058), (2755, 75524), (3002, 69310), (4541, 45820), (4582, 45410), (4780, 43529), (5510, 37762), (6004, 34655), (6931, 30020), (7505, 27724), (9082, 22910), (9164, 22705), (11020, 18881), (11455, 18164), (13862, 15010)]