409660420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1575617}}^1$

素因数の和:1575639

約数の個数: 24

約数和(自身を含む): 926463384

約数和(自身を除く): 516802964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1575617, 3151234, 6302468, 7878085, 15756170, 20483021, 31512340, 40966042, 81932084, 102415105, 204830210, 409660420]

約数ペア:

[(1, 409660420), (2, 204830210), (4, 102415105), (5, 81932084), (10, 40966042), (13, 31512340), (20, 20483021), (26, 15756170), (52, 7878085), (65, 6302468), (130, 3151234), (260, 1575617)]