70872440

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4463}}^1$

素因数の和:4871

約数の個数: 32

約数和(自身を含む): 159900480

約数和(自身を除く): 89028040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 4463, 7940, 8926, 15880, 17852, 22315, 35704, 44630, 89260, 178520, 1771811, 3543622, 7087244, 8859055, 14174488, 17718110, 35436220, 70872440]

約数ペア:

[(1, 70872440), (2, 35436220), (4, 17718110), (5, 14174488), (8, 8859055), (10, 7087244), (20, 3543622), (40, 1771811), (397, 178520), (794, 89260), (1588, 44630), (1985, 35704), (3176, 22315), (3970, 17852), (4463, 15880), (7940, 8926)]