19254620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12503}}^1$

素因数の和:12530

約数の個数: 48

約数和(自身を含む): 50416128

約数和(自身を除く): 31161508

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12503, 25006, 50012, 62515, 87521, 125030, 137533, 175042, 250060, 275066, 350084, 437605, 550132, 687665, 875210, 962731, 1375330, 1750420, 1925462, 2750660, 3850924, 4813655, 9627310, 19254620]

約数ペア:

[(1, 19254620), (2, 9627310), (4, 4813655), (5, 3850924), (7, 2750660), (10, 1925462), (11, 1750420), (14, 1375330), (20, 962731), (22, 875210), (28, 687665), (35, 550132), (44, 437605), (55, 350084), (70, 275066), (77, 250060), (110, 175042), (140, 137533), (154, 125030), (220, 87521), (308, 62515), (385, 50012), (770, 25006), (1540, 12503)]