77955220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{556823}}^1$

素因数の和:556839

約数の個数: 24

約数和(自身を含む): 187092864

約数和(自身を除く): 109137644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 556823, 1113646, 2227292, 2784115, 3897761, 5568230, 7795522, 11136460, 15591044, 19488805, 38977610, 77955220]

約数ペア:

[(1, 77955220), (2, 38977610), (4, 19488805), (5, 15591044), (7, 11136460), (10, 7795522), (14, 5568230), (20, 3897761), (28, 2784115), (35, 2227292), (70, 1113646), (140, 556823)]