78970120

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4397}}^1$

素因数の和:4857

約数の個数: 32

約数和(自身を含む): 178119000

約数和(自身を除く): 99148880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 1796, 2245, 3592, 4397, 4490, 8794, 8980, 17588, 17960, 21985, 35176, 43970, 87940, 175880, 1974253, 3948506, 7897012, 9871265, 15794024, 19742530, 39485060, 78970120]

約数ペア:

[(1, 78970120), (2, 39485060), (4, 19742530), (5, 15794024), (8, 9871265), (10, 7897012), (20, 3948506), (40, 1974253), (449, 175880), (898, 87940), (1796, 43970), (2245, 35176), (3592, 21985), (4397, 17960), (4490, 17588), (8794, 8980)]