290156

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{251}}^1$

素因数の和:289

約数の個数: 18

約数和(自身を含む): 541548

約数和(自身を除く): 251392

約数列:

[1, 2, 4, 17, 34, 68, 251, 289, 502, 578, 1004, 1156, 4267, 8534, 17068, 72539, 145078, 290156]

約数ペア:

[(1, 290156), (2, 145078), (4, 72539), (17, 17068), (34, 8534), (68, 4267), (251, 1156), (289, 1004), (502, 578)]