28212945

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:182

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 22880559

約数列:

[1, 3, 5, 15, 17, 31, 43, 51, 83, 85, 93, 129, 155, 215, 249, 255, 415, 465, 527, 645, 731, 1245, 1333, 1411, 1581, 2193, 2573, 2635, 3569, 3655, 3999, 4233, 6665, 7055, 7719, 7905, 10707, 10965, 12865, 17845, 19995, 21165, 22661, 38595, 43741, 53535, 60673, 67983, 110639, 113305, 131223, 182019, 218705, 303365, 331917, 339915, 553195, 656115, 910095, 1659585, 1880863, 5642589, 9404315, 28212945]

約数ペア:

[(1, 28212945), (3, 9404315), (5, 5642589), (15, 1880863), (17, 1659585), (31, 910095), (43, 656115), (51, 553195), (83, 339915), (85, 331917), (93, 303365), (129, 218705), (155, 182019), (215, 131223), (249, 113305), (255, 110639), (415, 67983), (465, 60673), (527, 53535), (645, 43741), (731, 38595), (1245, 22661), (1333, 21165), (1411, 19995), (1581, 17845), (2193, 12865), (2573, 10965), (2635, 10707), (3569, 7905), (3655, 7719), (3999, 7055), (4233, 6665)]