201721360

素因数分解:

$2^4\times 5^1\times {\mathrm{2521517}}^1$

素因数の和:2521530

約数の個数: 20

約数和(自身を含む): 469002348

約数和(自身を除く): 267280988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2521517, 5043034, 10086068, 12607585, 20172136, 25215170, 40344272, 50430340, 100860680, 201721360]

約数ペア:

[(1, 201721360), (2, 100860680), (4, 50430340), (5, 40344272), (8, 25215170), (10, 20172136), (16, 12607585), (20, 10086068), (40, 5043034), (80, 2521517)]