78198520

素因数分解:

$2^3\times 5^1\times {\mathrm{1954963}}^1$

素因数の和:1954974

約数の個数: 16

約数和(自身を含む): 175946760

約数和(自身を除く): 97748240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1954963, 3909926, 7819852, 9774815, 15639704, 19549630, 39099260, 78198520]

約数ペア:

[(1, 78198520), (2, 39099260), (4, 19549630), (5, 15639704), (8, 9774815), (10, 7819852), (20, 3909926), (40, 1954963)]