20280234

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{260003}}^1$

素因数の和:260021

約数の個数: 16

約数和(自身を含む): 43680672

約数和(自身を除く): 23400438

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 260003, 520006, 780009, 1560018, 3380039, 6760078, 10140117, 20280234]

約数ペア:

[(1, 20280234), (2, 10140117), (3, 6760078), (6, 3380039), (13, 1560018), (26, 780009), (39, 520006), (78, 260003)]