261260350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{401939}}^1$

素因数の和:401964

約数の個数: 24

約数和(自身を含む): 523325880

約数和(自身を除く): 262065530

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 401939, 803878, 2009695, 4019390, 5225207, 10048475, 10450414, 20096950, 26126035, 52252070, 130630175, 261260350]

約数ペア:

[(1, 261260350), (2, 130630175), (5, 52252070), (10, 26126035), (13, 20096950), (25, 10450414), (26, 10048475), (50, 5225207), (65, 4019390), (130, 2009695), (325, 803878), (650, 401939)]