268351408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1290151}}^1$

素因数の和:1290172

約数の個数: 20

約数和(自身を含む): 559925968

約数和(自身を除く): 291574560

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1290151, 2580302, 5160604, 10321208, 16771963, 20642416, 33543926, 67087852, 134175704, 268351408]

約数ペア:

[(1, 268351408), (2, 134175704), (4, 67087852), (8, 33543926), (13, 20642416), (16, 16771963), (26, 10321208), (52, 5160604), (104, 2580302), (208, 1290151)]