20209370

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15427}}^1$

素因数の和:15565

約数の個数: 16

約数和(自身を含む): 36656928

約数和(自身を除く): 16447558

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 15427, 30854, 77135, 154270, 2020937, 4041874, 10104685, 20209370]

約数ペア:

[(1, 20209370), (2, 10104685), (5, 4041874), (10, 2020937), (131, 154270), (262, 77135), (655, 30854), (1310, 15427)]