39199804

素因数分解:

$2^2\times 7^2\times {\mathrm{199999}}^1$

素因数の和:200017

約数の個数: 18

約数和(自身を含む): 79800000

約数和(自身を除く): 40600196

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 199999, 399998, 799996, 1399993, 2799986, 5599972, 9799951, 19599902, 39199804]

約数ペア:

[(1, 39199804), (2, 19599902), (4, 9799951), (7, 5599972), (14, 2799986), (28, 1399993), (49, 799996), (98, 399998), (196, 199999)]