25710920

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5897}}^1$

素因数の和:6017

約数の個数: 32

約数和(自身を含む): 58390200

約数和(自身を除く): 32679280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 5897, 11794, 23588, 29485, 47176, 58970, 117940, 235880, 642773, 1285546, 2571092, 3213865, 5142184, 6427730, 12855460, 25710920]

約数ペア:

[(1, 25710920), (2, 12855460), (4, 6427730), (5, 5142184), (8, 3213865), (10, 2571092), (20, 1285546), (40, 642773), (109, 235880), (218, 117940), (436, 58970), (545, 47176), (872, 29485), (1090, 23588), (2180, 11794), (4360, 5897)]