81607540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83273}}^1$

素因数の和:83296

約数の個数: 36

約数和(自身を含む): 199357956

約数和(自身を除く): 117750416

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 83273, 166546, 333092, 416365, 582911, 832730, 1165822, 1665460, 2331644, 2914555, 4080377, 5829110, 8160754, 11658220, 16321508, 20401885, 40803770, 81607540]

約数ペア:

[(1, 81607540), (2, 40803770), (4, 20401885), (5, 16321508), (7, 11658220), (10, 8160754), (14, 5829110), (20, 4080377), (28, 2914555), (35, 2331644), (49, 1665460), (70, 1165822), (98, 832730), (140, 582911), (196, 416365), (245, 333092), (490, 166546), (980, 83273)]