78429820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560213}}^1$

素因数の和:560229

約数の個数: 24

約数和(自身を含む): 188231904

約数和(自身を除く): 109802084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560213, 1120426, 2240852, 2801065, 3921491, 5602130, 7842982, 11204260, 15685964, 19607455, 39214910, 78429820]

約数ペア:

[(1, 78429820), (2, 39214910), (4, 19607455), (5, 15685964), (7, 11204260), (10, 7842982), (14, 5602130), (20, 3921491), (28, 2801065), (35, 2240852), (70, 1120426), (140, 560213)]