19680830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151391}}^1$

素因数の和:151411

約数の個数: 16

約数和(自身を含む): 38150784

約数和(自身を除く): 18469954

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 151391, 302782, 756955, 1513910, 1968083, 3936166, 9840415, 19680830]

約数ペア:

[(1, 19680830), (2, 9840415), (5, 3936166), (10, 1968083), (13, 1513910), (26, 756955), (65, 302782), (130, 151391)]