20199805045

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1\times {\mathrm{4733}}^1$

素因数の和:6805

約数の個数: 32

約数和(自身を含む): 28176768000

約数和(自身を除く): 7976962955

約数列:

[1, 5, 7, 35, 61, 305, 427, 1999, 2135, 4733, 9995, 13993, 23665, 33131, 69965, 121939, 165655, 288713, 609695, 853573, 1443565, 2020991, 4267865, 9461267, 10104955, 47306335, 66228869, 331144345, 577137287, 2885686435, 4039961009, 20199805045]

約数ペア:

[(1, 20199805045), (5, 4039961009), (7, 2885686435), (35, 577137287), (61, 331144345), (305, 66228869), (427, 47306335), (1999, 10104955), (2135, 9461267), (4733, 4267865), (9995, 2020991), (13993, 1443565), (23665, 853573), (33131, 609695), (69965, 288713), (121939, 165655)]