290415836

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{201119}}^1$

素因数の和:201161

約数の個数: 18

約数和(自身を含む): 536387040

約数和(自身を除く): 245971204

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 201119, 402238, 804476, 3821261, 7642522, 15285044, 72603959, 145207918, 290415836]

約数ペア:

[(1, 290415836), (2, 145207918), (4, 72603959), (19, 15285044), (38, 7642522), (76, 3821261), (361, 804476), (722, 402238), (1444, 201119)]