205492060

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{39979}}^1$

素因数の和:40245

約数の個数: 24

約数和(自身を含む): 433223280

約数和(自身を除く): 227731220

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 39979, 79958, 159916, 199895, 399790, 799580, 10274603, 20549206, 41098412, 51373015, 102746030, 205492060]

約数ペア:

[(1, 205492060), (2, 102746030), (4, 51373015), (5, 41098412), (10, 20549206), (20, 10274603), (257, 799580), (514, 399790), (1028, 199895), (1285, 159916), (2570, 79958), (5140, 39979)]