20438485

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{877}}^1$

素因数の和:1020

約数の個数: 16

約数和(自身を含む): 25286400

約数和(自身を除く): 4847915

約数列:

[1, 5, 59, 79, 295, 395, 877, 4385, 4661, 23305, 51743, 69283, 258715, 346415, 4087697, 20438485]

約数ペア:

[(1, 20438485), (5, 4087697), (59, 346415), (79, 258715), (295, 69283), (395, 51743), (877, 23305), (4385, 4661)]