409323220

素因数分解:

$2^2\times 5^1\times {\mathrm{5209}}^1\times {\mathrm{3929}}^1$

素因数の和:9147

約数の個数: 24

約数和(自身を含む): 859962600

約数和(自身を除く): 450639380

約数列:

[1, 2, 4, 5, 10, 20, 3929, 5209, 7858, 10418, 15716, 19645, 20836, 26045, 39290, 52090, 78580, 104180, 20466161, 40932322, 81864644, 102330805, 204661610, 409323220]

約数ペア:

[(1, 409323220), (2, 204661610), (4, 102330805), (5, 81864644), (10, 40932322), (20, 20466161), (3929, 104180), (5209, 78580), (7858, 52090), (10418, 39290), (15716, 26045), (19645, 20836)]