219080420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{842617}}^1$

素因数の和:842639

約数の個数: 24

約数和(自身を含む): 495459384

約数和(自身を除く): 276378964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 842617, 1685234, 3370468, 4213085, 8426170, 10954021, 16852340, 21908042, 43816084, 54770105, 109540210, 219080420]

約数ペア:

[(1, 219080420), (2, 109540210), (4, 54770105), (5, 43816084), (10, 21908042), (13, 16852340), (20, 10954021), (26, 8426170), (52, 4213085), (65, 3370468), (130, 1685234), (260, 842617)]