381249905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{19759}}^1$

素因数の和:20008

約数の個数: 16

約数和(自身を含む): 486570240

約数和(自身を除く): 105320335

約数列:

[1, 5, 17, 85, 227, 1135, 3859, 19295, 19759, 98795, 335903, 1679515, 4485293, 22426465, 76249981, 381249905]

約数ペア:

[(1, 381249905), (5, 76249981), (17, 22426465), (85, 4485293), (227, 1679515), (1135, 335903), (3859, 98795), (19295, 19759)]