24780920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4457}}^1$

素因数の和:4607

約数の個数: 32

約数和(自身を含む): 56170800

約数和(自身を除く): 31389880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 4457, 5560, 8914, 17828, 22285, 35656, 44570, 89140, 178280, 619523, 1239046, 2478092, 3097615, 4956184, 6195230, 12390460, 24780920]

約数ペア:

[(1, 24780920), (2, 12390460), (4, 6195230), (5, 4956184), (8, 3097615), (10, 2478092), (20, 1239046), (40, 619523), (139, 178280), (278, 89140), (556, 44570), (695, 35656), (1112, 22285), (1390, 17828), (2780, 8914), (4457, 5560)]