20137015

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{641}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 24837696

約数和(自身を除く): 4700681

約数列:

[1, 5, 61, 103, 305, 515, 641, 3205, 6283, 31415, 39101, 66023, 195505, 330115, 4027403, 20137015]

約数ペア:

[(1, 20137015), (5, 4027403), (61, 330115), (103, 195505), (305, 66023), (515, 39101), (641, 31415), (3205, 6283)]