78821795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{28201}}^1$

素因数の和:28262

約数の個数: 16

約数和(自身を含む): 104234592

約数和(自身を除く): 25412797

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 28201, 141005, 366613, 1212643, 1833065, 6063215, 15764359, 78821795]

約数ペア:

[(1, 78821795), (5, 15764359), (13, 6063215), (43, 1833065), (65, 1212643), (215, 366613), (559, 141005), (2795, 28201)]