25859440

素因数分解:

$2^4\times 5^1\times {\mathrm{323243}}^1$

素因数の和:323256

約数の個数: 20

約数和(自身を含む): 60123384

約数和(自身を除く): 34263944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 323243, 646486, 1292972, 1616215, 2585944, 3232430, 5171888, 6464860, 12929720, 25859440]

約数ペア:

[(1, 25859440), (2, 12929720), (4, 6464860), (5, 5171888), (8, 3232430), (10, 2585944), (16, 1616215), (20, 1292972), (40, 646486), (80, 323243)]