208136015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{78989}}^1$

素因数の和:79042

約数の個数: 16

約数和(自身を含む): 272989440

約数和(自身を除く): 64853425

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 78989, 394945, 1342813, 2448659, 6714065, 12243295, 41627203, 208136015]

約数ペア:

[(1, 208136015), (5, 41627203), (17, 12243295), (31, 6714065), (85, 2448659), (155, 1342813), (527, 394945), (2635, 78989)]