28065700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21589}}^1$

素因数の和:21616

約数の個数: 36

約数和(自身を含む): 65590420

約数和(自身を除く): 37524720

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 21589, 43178, 86356, 107945, 215890, 280657, 431780, 539725, 561314, 1079450, 1122628, 1403285, 2158900, 2806570, 5613140, 7016425, 14032850, 28065700]

約数ペア:

[(1, 28065700), (2, 14032850), (4, 7016425), (5, 5613140), (10, 2806570), (13, 2158900), (20, 1403285), (25, 1122628), (26, 1079450), (50, 561314), (52, 539725), (65, 431780), (100, 280657), (130, 215890), (260, 107945), (325, 86356), (650, 43178), (1300, 21589)]