20804190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2741}}^1$

素因数の和:2785

約数の個数: 64

約数和(自身を含む): 56858112

約数和(自身を除く): 36053922

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2530, 2741, 3795, 5482, 7590, 8223, 13705, 16446, 27410, 30151, 41115, 60302, 63043, 82230, 90453, 126086, 150755, 180906, 189129, 301510, 315215, 378258, 452265, 630430, 693473, 904530, 945645, 1386946, 1891290, 2080419, 3467365, 4160838, 6934730, 10402095, 20804190]

約数ペア:

[(1, 20804190), (2, 10402095), (3, 6934730), (5, 4160838), (6, 3467365), (10, 2080419), (11, 1891290), (15, 1386946), (22, 945645), (23, 904530), (30, 693473), (33, 630430), (46, 452265), (55, 378258), (66, 315215), (69, 301510), (110, 189129), (115, 180906), (138, 150755), (165, 126086), (230, 90453), (253, 82230), (330, 63043), (345, 60302), (506, 41115), (690, 30151), (759, 27410), (1265, 16446), (1518, 13705), (2530, 8223), (2741, 7590), (3795, 5482)]