20328010

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28631}}^1$

素因数の和:28709

約数の個数: 16

約数和(自身を含む): 37107072

約数和(自身を除く): 16779062

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28631, 57262, 143155, 286310, 2032801, 4065602, 10164005, 20328010]

約数ペア:

[(1, 20328010), (2, 10164005), (5, 4065602), (10, 2032801), (71, 286310), (142, 143155), (355, 57262), (710, 28631)]