521012440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1001947}}^1$

素因数の和:1001971

約数の個数: 32

約数和(自身を含む): 1262454480

約数和(自身を除く): 741442040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1001947, 2003894, 4007788, 5009735, 8015576, 10019470, 13025311, 20038940, 26050622, 40077880, 52101244, 65126555, 104202488, 130253110, 260506220, 521012440]

約数ペア:

[(1, 521012440), (2, 260506220), (4, 130253110), (5, 104202488), (8, 65126555), (10, 52101244), (13, 40077880), (20, 26050622), (26, 20038940), (40, 13025311), (52, 10019470), (65, 8015576), (104, 5009735), (130, 4007788), (260, 2003894), (520, 1001947)]