19081900

素因数分解:

$2^2\times 5^2\times {\mathrm{173}}^1\times {\mathrm{1103}}^1$

素因数の和:1290

約数の個数: 36

約数和(自身を含む): 41684832

約数和(自身を除く): 22602932

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 173, 346, 692, 865, 1103, 1730, 2206, 3460, 4325, 4412, 5515, 8650, 11030, 17300, 22060, 27575, 55150, 110300, 190819, 381638, 763276, 954095, 1908190, 3816380, 4770475, 9540950, 19081900]

約数ペア:

[(1, 19081900), (2, 9540950), (4, 4770475), (5, 3816380), (10, 1908190), (20, 954095), (25, 763276), (50, 381638), (100, 190819), (173, 110300), (346, 55150), (692, 27575), (865, 22060), (1103, 17300), (1730, 11030), (2206, 8650), (3460, 5515), (4325, 4412)]