78804985

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{5273}}^1$

素因数の和:5353

約数の個数: 24

約数和(自身を含む): 111829896

約数和(自身を除く): 33024911

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 2135, 2989, 5273, 14945, 26365, 36911, 184555, 258377, 321653, 1291885, 1608265, 2251571, 11257855, 15760997, 78804985]

約数ペア:

[(1, 78804985), (5, 15760997), (7, 11257855), (35, 2251571), (49, 1608265), (61, 1291885), (245, 321653), (305, 258377), (427, 184555), (2135, 36911), (2989, 26365), (5273, 14945)]