66938620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{739}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 161118720

約数和(自身を除く): 94180100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 647, 739, 1294, 1478, 2588, 2956, 3235, 3695, 4529, 5173, 6470, 7390, 9058, 10346, 12940, 14780, 18116, 20692, 22645, 25865, 45290, 51730, 90580, 103460, 478133, 956266, 1912532, 2390665, 3346931, 4781330, 6693862, 9562660, 13387724, 16734655, 33469310, 66938620]

約数ペア:

[(1, 66938620), (2, 33469310), (4, 16734655), (5, 13387724), (7, 9562660), (10, 6693862), (14, 4781330), (20, 3346931), (28, 2390665), (35, 1912532), (70, 956266), (140, 478133), (647, 103460), (739, 90580), (1294, 51730), (1478, 45290), (2588, 25865), (2956, 22645), (3235, 20692), (3695, 18116), (4529, 14780), (5173, 12940), (6470, 10346), (7390, 9058)]