20716390

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20113}}^1$

素因数の和:20223

約数の個数: 16

約数和(自身を含む): 37653408

約数和(自身を除く): 16937018

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 20113, 40226, 100565, 201130, 2071639, 4143278, 10358195, 20716390]

約数ペア:

[(1, 20716390), (2, 10358195), (5, 4143278), (10, 2071639), (103, 201130), (206, 100565), (515, 40226), (1030, 20113)]