201854540

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{23417}}^1$

素因数の和:23857

約数の個数: 24

約数和(自身を含む): 424896192

約数和(自身を除く): 223041652

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 23417, 46834, 93668, 117085, 234170, 468340, 10092727, 20185454, 40370908, 50463635, 100927270, 201854540]

約数ペア:

[(1, 201854540), (2, 100927270), (4, 50463635), (5, 40370908), (10, 20185454), (20, 10092727), (431, 468340), (862, 234170), (1724, 117085), (2155, 93668), (4310, 46834), (8620, 23417)]