51548720

素因数分解:

$2^4\times 5^1\times {\mathrm{644359}}^1$

素因数の和:644372

約数の個数: 20

約数和(自身を含む): 119850960

約数和(自身を除く): 68302240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 644359, 1288718, 2577436, 3221795, 5154872, 6443590, 10309744, 12887180, 25774360, 51548720]

約数ペア:

[(1, 51548720), (2, 25774360), (4, 12887180), (5, 10309744), (8, 6443590), (10, 5154872), (16, 3221795), (20, 2577436), (40, 1288718), (80, 644359)]