78740305

素因数分解:

$5^1\times 7^2\times {\mathrm{557}}^1\times {\mathrm{577}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 110303208

約数和(自身を除く): 31562903

約数列:

[1, 5, 7, 35, 49, 245, 557, 577, 2785, 2885, 3899, 4039, 19495, 20195, 27293, 28273, 136465, 141365, 321389, 1606945, 2249723, 11248615, 15748061, 78740305]

約数ペア:

[(1, 78740305), (5, 15748061), (7, 11248615), (35, 2249723), (49, 1606945), (245, 321389), (557, 141365), (577, 136465), (2785, 28273), (2885, 27293), (3899, 20195), (4039, 19495)]