83781620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{322237}}^1$

素因数の和:322259

約数の個数: 24

約数和(自身を含む): 189475944

約数和(自身を除く): 105694324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 322237, 644474, 1288948, 1611185, 3222370, 4189081, 6444740, 8378162, 16756324, 20945405, 41890810, 83781620]

約数ペア:

[(1, 83781620), (2, 41890810), (4, 20945405), (5, 16756324), (10, 8378162), (13, 6444740), (20, 4189081), (26, 3222370), (52, 1611185), (65, 1288948), (130, 644474), (260, 322237)]