19154360

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1231}}^1$

素因数の和:1631

約数の個数: 32

約数和(自身を含む): 43243200

約数和(自身を除く): 24088840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1231, 1556, 1945, 2462, 3112, 3890, 4924, 6155, 7780, 9848, 12310, 15560, 24620, 49240, 478859, 957718, 1915436, 2394295, 3830872, 4788590, 9577180, 19154360]

約数ペア:

[(1, 19154360), (2, 9577180), (4, 4788590), (5, 3830872), (8, 2394295), (10, 1915436), (20, 957718), (40, 478859), (389, 49240), (778, 24620), (1231, 15560), (1556, 12310), (1945, 9848), (2462, 7780), (3112, 6155), (3890, 4924)]