206540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 453600

約数和(自身を除く): 247060

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 449, 460, 898, 1796, 2245, 4490, 8980, 10327, 20654, 41308, 51635, 103270, 206540]

約数ペア:

[(1, 206540), (2, 103270), (4, 51635), (5, 41308), (10, 20654), (20, 10327), (23, 8980), (46, 4490), (92, 2245), (115, 1796), (230, 898), (449, 460)]