19481795

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 32

約数和(自身を含む): 25681920

約数和(自身を除く): 6200125

約数列:

[1, 5, 31, 37, 43, 79, 155, 185, 215, 395, 1147, 1333, 1591, 2449, 2923, 3397, 5735, 6665, 7955, 12245, 14615, 16985, 49321, 90613, 105307, 125689, 246605, 453065, 526535, 628445, 3896359, 19481795]

約数ペア:

[(1, 19481795), (5, 3896359), (31, 628445), (37, 526535), (43, 453065), (79, 246605), (155, 125689), (185, 105307), (215, 90613), (395, 49321), (1147, 16985), (1333, 14615), (1591, 12245), (2449, 7955), (2923, 6665), (3397, 5735)]