13871540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7793}}^1$

素因数の和:7891

約数の個数: 24

約数和(自身を含む): 29461320

約数和(自身を除く): 15589780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 7793, 15586, 31172, 38965, 77930, 155860, 693577, 1387154, 2774308, 3467885, 6935770, 13871540]

約数ペア:

[(1, 13871540), (2, 6935770), (4, 3467885), (5, 2774308), (10, 1387154), (20, 693577), (89, 155860), (178, 77930), (356, 38965), (445, 31172), (890, 15586), (1780, 7793)]