25666420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{98717}}^1$

素因数の和:98739

約数の個数: 24

約数和(自身を含む): 58046184

約数和(自身を除く): 32379764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 98717, 197434, 394868, 493585, 987170, 1283321, 1974340, 2566642, 5133284, 6416605, 12833210, 25666420]

約数ペア:

[(1, 25666420), (2, 12833210), (4, 6416605), (5, 5133284), (10, 2566642), (13, 1974340), (20, 1283321), (26, 987170), (52, 493585), (65, 394868), (130, 197434), (260, 98717)]