27209980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{739}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 65640960

約数和(自身を除く): 38430980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 526, 739, 1052, 1315, 1478, 1841, 2630, 2956, 3682, 3695, 5173, 5260, 7364, 7390, 9205, 10346, 14780, 18410, 20692, 25865, 36820, 51730, 103460, 194357, 388714, 777428, 971785, 1360499, 1943570, 2720998, 3887140, 5441996, 6802495, 13604990, 27209980]

約数ペア:

[(1, 27209980), (2, 13604990), (4, 6802495), (5, 5441996), (7, 3887140), (10, 2720998), (14, 1943570), (20, 1360499), (28, 971785), (35, 777428), (70, 388714), (140, 194357), (263, 103460), (526, 51730), (739, 36820), (1052, 25865), (1315, 20692), (1478, 18410), (1841, 14780), (2630, 10346), (2956, 9205), (3682, 7390), (3695, 7364), (5173, 5260)]