205162990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{18979}}^1$

素因数の和:19056

約数の個数: 32

約数和(自身を含む): 393569280

約数和(自身を除く): 188406290

約数列:

[1, 2, 5, 10, 23, 46, 47, 94, 115, 230, 235, 470, 1081, 2162, 5405, 10810, 18979, 37958, 94895, 189790, 436517, 873034, 892013, 1784026, 2182585, 4365170, 4460065, 8920130, 20516299, 41032598, 102581495, 205162990]

約数ペア:

[(1, 205162990), (2, 102581495), (5, 41032598), (10, 20516299), (23, 8920130), (46, 4460065), (47, 4365170), (94, 2182585), (115, 1784026), (230, 892013), (235, 873034), (470, 436517), (1081, 189790), (2162, 94895), (5405, 37958), (10810, 18979)]