28780491261

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{881}}^1\times {\mathrm{8933}}^1$

素因数の和:9893

約数の個数: 32

約数和(自身を含む): 40848820992

約数和(自身を除く): 12068329731

約数列:

[1, 3, 23, 53, 69, 159, 881, 1219, 2643, 3657, 8933, 20263, 26799, 46693, 60789, 140079, 205459, 473449, 616377, 1073939, 1420347, 3221817, 7869973, 10889327, 23609919, 32667981, 181009379, 417108569, 543028137, 1251325707, 9593497087, 28780491261]

約数ペア:

[(1, 28780491261), (3, 9593497087), (23, 1251325707), (53, 543028137), (69, 417108569), (159, 181009379), (881, 32667981), (1219, 23609919), (2643, 10889327), (3657, 7869973), (8933, 3221817), (20263, 1420347), (26799, 1073939), (46693, 616377), (60789, 473449), (140079, 205459)]