61379620

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{22079}}^1$

素因数の和:22227

約数の個数: 24

約数和(自身を含む): 129830400

約数和(自身を除く): 68450780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 22079, 44158, 88316, 110395, 220790, 441580, 3068981, 6137962, 12275924, 15344905, 30689810, 61379620]

約数ペア:

[(1, 61379620), (2, 30689810), (4, 15344905), (5, 12275924), (10, 6137962), (20, 3068981), (139, 441580), (278, 220790), (556, 110395), (695, 88316), (1390, 44158), (2780, 22079)]