78794120

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{4273}}^1$

素因数の和:4745

約数の個数: 32

約数和(自身を含む): 177712920

約数和(自身を除く): 98918800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1844, 2305, 3688, 4273, 4610, 8546, 9220, 17092, 18440, 21365, 34184, 42730, 85460, 170920, 1969853, 3939706, 7879412, 9849265, 15758824, 19698530, 39397060, 78794120]

約数ペア:

[(1, 78794120), (2, 39397060), (4, 19698530), (5, 15758824), (8, 9849265), (10, 7879412), (20, 3939706), (40, 1969853), (461, 170920), (922, 85460), (1844, 42730), (2305, 34184), (3688, 21365), (4273, 18440), (4610, 17092), (8546, 9220)]