72178028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{20717}}^1$

素因数の和:20801

約数の個数: 24

約数和(自身を含む): 138064752

約数和(自身を除く): 65886724

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 20717, 41434, 82868, 269321, 538642, 1077284, 1388039, 2776078, 5552156, 18044507, 36089014, 72178028]

約数ペア:

[(1, 72178028), (2, 36089014), (4, 18044507), (13, 5552156), (26, 2776078), (52, 1388039), (67, 1077284), (134, 538642), (268, 269321), (871, 82868), (1742, 41434), (3484, 20717)]