28481830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{219091}}^1$

素因数の和:219111

約数の個数: 16

約数和(自身を含む): 55211184

約数和(自身を除く): 26729354

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 219091, 438182, 1095455, 2190910, 2848183, 5696366, 14240915, 28481830]

約数ペア:

[(1, 28481830), (2, 14240915), (5, 5696366), (10, 2848183), (13, 2190910), (26, 1095455), (65, 438182), (130, 219091)]