80494280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{883}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 189034560

約数和(自身を除く): 108540280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 424, 430, 530, 860, 883, 1060, 1720, 1766, 2120, 2279, 3532, 4415, 4558, 7064, 8830, 9116, 11395, 17660, 18232, 22790, 35320, 37969, 45580, 46799, 75938, 91160, 93598, 151876, 187196, 189845, 233995, 303752, 374392, 379690, 467990, 759380, 935980, 1518760, 1871960, 2012357, 4024714, 8049428, 10061785, 16098856, 20123570, 40247140, 80494280]

約数ペア:

[(1, 80494280), (2, 40247140), (4, 20123570), (5, 16098856), (8, 10061785), (10, 8049428), (20, 4024714), (40, 2012357), (43, 1871960), (53, 1518760), (86, 935980), (106, 759380), (172, 467990), (212, 379690), (215, 374392), (265, 303752), (344, 233995), (424, 189845), (430, 187196), (530, 151876), (860, 93598), (883, 91160), (1060, 75938), (1720, 46799), (1766, 45580), (2120, 37969), (2279, 35320), (3532, 22790), (4415, 18232), (4558, 17660), (7064, 11395), (8830, 9116)]