201390020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{774577}}^1$

素因数の和:774599

約数の個数: 24

約数和(自身を含む): 455451864

約数和(自身を除く): 254061844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 774577, 1549154, 3098308, 3872885, 7745770, 10069501, 15491540, 20139002, 40278004, 50347505, 100695010, 201390020]

約数ペア:

[(1, 201390020), (2, 100695010), (4, 50347505), (5, 40278004), (10, 20139002), (13, 15491540), (20, 10069501), (26, 7745770), (52, 3872885), (65, 3098308), (130, 1549154), (260, 774577)]