210849860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{810961}}^1$

素因数の和:810983

約数の個数: 24

約数和(自身を含む): 476845656

約数和(自身を除く): 265995796

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 810961, 1621922, 3243844, 4054805, 8109610, 10542493, 16219220, 21084986, 42169972, 52712465, 105424930, 210849860]

約数ペア:

[(1, 210849860), (2, 105424930), (4, 52712465), (5, 42169972), (10, 21084986), (13, 16219220), (20, 10542493), (26, 8109610), (52, 4054805), (65, 3243844), (130, 1621922), (260, 810961)]