31066420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20173}}^1$

素因数の和:20200

約数の個数: 48

約数和(自身を含む): 81341568

約数和(自身を除く): 50275148

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20173, 40346, 80692, 100865, 141211, 201730, 221903, 282422, 403460, 443806, 564844, 706055, 887612, 1109515, 1412110, 1553321, 2219030, 2824220, 3106642, 4438060, 6213284, 7766605, 15533210, 31066420]

約数ペア:

[(1, 31066420), (2, 15533210), (4, 7766605), (5, 6213284), (7, 4438060), (10, 3106642), (11, 2824220), (14, 2219030), (20, 1553321), (22, 1412110), (28, 1109515), (35, 887612), (44, 706055), (55, 564844), (70, 443806), (77, 403460), (110, 282422), (140, 221903), (154, 201730), (220, 141211), (308, 100865), (385, 80692), (770, 40346), (1540, 20173)]