28818580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205847}}^1$

素因数の和:205863

約数の個数: 24

約数和(自身を含む): 69164928

約数和(自身を除く): 40346348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205847, 411694, 823388, 1029235, 1440929, 2058470, 2881858, 4116940, 5763716, 7204645, 14409290, 28818580]

約数ペア:

[(1, 28818580), (2, 14409290), (4, 7204645), (5, 5763716), (7, 4116940), (10, 2881858), (14, 2058470), (20, 1440929), (28, 1029235), (35, 823388), (70, 411694), (140, 205847)]