78869080

素因数分解:

$2^3\times 5^1\times {\mathrm{1971727}}^1$

素因数の和:1971738

約数の個数: 16

約数和(自身を含む): 177455520

約数和(自身を除く): 98586440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1971727, 3943454, 7886908, 9858635, 15773816, 19717270, 39434540, 78869080]

約数ペア:

[(1, 78869080), (2, 39434540), (4, 19717270), (5, 15773816), (8, 9858635), (10, 7886908), (20, 3943454), (40, 1971727)]