31214260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20269}}^1$

素因数の和:20296

約数の個数: 48

約数和(自身を含む): 81728640

約数和(自身を除く): 50514380

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, 20269, 40538, 81076, 101345, 141883, 202690, 222959, 283766, 405380, 445918, 567532, 709415, 891836, 1114795, 1418830, 1560713, 2229590, 2837660, 3121426, 4459180, 6242852, 7803565, 15607130, 31214260]

約数ペア:

[(1, 31214260), (2, 15607130), (4, 7803565), (5, 6242852), (7, 4459180), (10, 3121426), (11, 2837660), (14, 2229590), (20, 1560713), (22, 1418830), (28, 1114795), (35, 891836), (44, 709415), (55, 567532), (70, 445918), (77, 405380), (110, 283766), (140, 222959), (154, 202690), (220, 141883), (308, 101345), (385, 81076), (770, 40538), (1540, 20269)]