15819280

素因数分解:

$2^4\times 5^1\times {\mathrm{197741}}^1$

素因数の和:197754

約数の個数: 20

約数和(自身を含む): 36780012

約数和(自身を除く): 20960732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197741, 395482, 790964, 988705, 1581928, 1977410, 3163856, 3954820, 7909640, 15819280]

約数ペア:

[(1, 15819280), (2, 7909640), (4, 3954820), (5, 3163856), (8, 1977410), (10, 1581928), (16, 988705), (20, 790964), (40, 395482), (80, 197741)]