19803325

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 25633280

約数和(自身を除く): 5829955

約数列:

[1, 5, 25, 37, 79, 185, 271, 395, 925, 1355, 1975, 2923, 6775, 10027, 14615, 21409, 50135, 73075, 107045, 250675, 535225, 792133, 3960665, 19803325]

約数ペア:

[(1, 19803325), (5, 3960665), (25, 792133), (37, 535225), (79, 250675), (185, 107045), (271, 73075), (395, 50135), (925, 21409), (1355, 14615), (1975, 10027), (2923, 6775)]