289704778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{120811}}^1$

素因数の和:120933

約数の個数: 16

約数和(自身を含む): 478415520

約数和(自身を除く): 188710742

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 120811, 241622, 1328921, 2657842, 13168399, 26336798, 144852389, 289704778]

約数ペア:

[(1, 289704778), (2, 144852389), (11, 26336798), (22, 13168399), (109, 2657842), (218, 1328921), (1199, 241622), (2398, 120811)]