81406915

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{509}}^1\times {\mathrm{1103}}^1$

素因数の和:1646

約数の個数: 16

約数和(自身を含む): 101347200

約数和(自身を除く): 19940285

約数列:

[1, 5, 29, 145, 509, 1103, 2545, 5515, 14761, 31987, 73805, 159935, 561427, 2807135, 16281383, 81406915]

約数ペア:

[(1, 81406915), (5, 16281383), (29, 2807135), (145, 561427), (509, 159935), (1103, 73805), (2545, 31987), (5515, 14761)]