13220870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{7823}}^1$

素因数の和:7856

約数の個数: 24

約数和(自身を含む): 25772256

約数和(自身を除く): 12551386

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 7823, 15646, 39115, 78230, 101699, 203398, 508495, 1016990, 1322087, 2644174, 6610435, 13220870]

約数ペア:

[(1, 13220870), (2, 6610435), (5, 2644174), (10, 1322087), (13, 1016990), (26, 508495), (65, 203398), (130, 101699), (169, 78230), (338, 39115), (845, 15646), (1690, 7823)]