20836270

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3271}}^1$

素因数の和:3305

約数の個数: 48

約数和(自身を含む): 46999008

約数和(自身を除く): 26162738

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 3185, 3271, 6370, 6542, 16355, 22897, 32710, 42523, 45794, 85046, 114485, 160279, 212615, 228970, 297661, 320558, 425230, 595322, 801395, 1488305, 1602790, 2083627, 2976610, 4167254, 10418135, 20836270]

約数ペア:

[(1, 20836270), (2, 10418135), (5, 4167254), (7, 2976610), (10, 2083627), (13, 1602790), (14, 1488305), (26, 801395), (35, 595322), (49, 425230), (65, 320558), (70, 297661), (91, 228970), (98, 212615), (130, 160279), (182, 114485), (245, 85046), (455, 45794), (490, 42523), (637, 32710), (910, 22897), (1274, 16355), (3185, 6542), (3271, 6370)]