721300138

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{71317}}^1$

素因数の和:71721

約数の個数: 16

約数和(自身を含む): 1168188840

約数和(自身を除く): 446888702

約数列:

[1, 2, 13, 26, 389, 778, 5057, 10114, 71317, 142634, 927121, 1854242, 27742313, 55484626, 360650069, 721300138]

約数ペア:

[(1, 721300138), (2, 360650069), (13, 55484626), (26, 27742313), (389, 1854242), (778, 927121), (5057, 142634), (10114, 71317)]