205439780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:518

約数の個数: 144

約数和(自身を含む): 563230080

約数和(自身を除く): 357790300

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 169, 182, 190, 247, 260, 266, 338, 364, 380, 455, 457, 494, 532, 665, 676, 845, 910, 914, 988, 1183, 1235, 1330, 1690, 1729, 1820, 1828, 2285, 2366, 2470, 2660, 3199, 3211, 3380, 3458, 4570, 4732, 4940, 5915, 5941, 6398, 6422, 6916, 8645, 8683, 9140, 11830, 11882, 12796, 12844, 15995, 16055, 17290, 17366, 22477, 23660, 23764, 29705, 31990, 32110, 34580, 34732, 41587, 43415, 44954, 59410, 60781, 63980, 64220, 77233, 83174, 86830, 89908, 112385, 112879, 118820, 121562, 154466, 166348, 173660, 207935, 224770, 225758, 243124, 303905, 308932, 386165, 415870, 449540, 451516, 540631, 564395, 607810, 772330, 790153, 831740, 1081262, 1128790, 1215620, 1467427, 1544660, 1580306, 2162524, 2257580, 2703155, 2934854, 3160612, 3950765, 5406310, 5869708, 7337135, 7901530, 10271989, 10812620, 14674270, 15803060, 20543978, 29348540, 41087956, 51359945, 102719890, 205439780]

約数ペア:

[(1, 205439780), (2, 102719890), (4, 51359945), (5, 41087956), (7, 29348540), (10, 20543978), (13, 15803060), (14, 14674270), (19, 10812620), (20, 10271989), (26, 7901530), (28, 7337135), (35, 5869708), (38, 5406310), (52, 3950765), (65, 3160612), (70, 2934854), (76, 2703155), (91, 2257580), (95, 2162524), (130, 1580306), (133, 1544660), (140, 1467427), (169, 1215620), (182, 1128790), (190, 1081262), (247, 831740), (260, 790153), (266, 772330), (338, 607810), (364, 564395), (380, 540631), (455, 451516), (457, 449540), (494, 415870), (532, 386165), (665, 308932), (676, 303905), (845, 243124), (910, 225758), (914, 224770), (988, 207935), (1183, 173660), (1235, 166348), (1330, 154466), (1690, 121562), (1729, 118820), (1820, 112879), (1828, 112385), (2285, 89908), (2366, 86830), (2470, 83174), (2660, 77233), (3199, 64220), (3211, 63980), (3380, 60781), (3458, 59410), (4570, 44954), (4732, 43415), (4940, 41587), (5915, 34732), (5941, 34580), (6398, 32110), (6422, 31990), (6916, 29705), (8645, 23764), (8683, 23660), (9140, 22477), (11830, 17366), (11882, 17290), (12796, 16055), (12844, 15995)]