15972020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{8233}}^1$

素因数の和:8339

約数の個数: 24

約数和(自身を含む): 33891144

約数和(自身を除く): 17919124

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 8233, 16466, 32932, 41165, 82330, 164660, 798601, 1597202, 3194404, 3993005, 7986010, 15972020]

約数ペア:

[(1, 15972020), (2, 7986010), (4, 3993005), (5, 3194404), (10, 1597202), (20, 798601), (97, 164660), (194, 82330), (388, 41165), (485, 32932), (970, 16466), (1940, 8233)]