152991640

素因数分解:

$2^3\times 5^1\times {\mathrm{857}}^1\times {\mathrm{4463}}^1$

素因数の和:5331

約数の個数: 32

約数和(自身を含む): 344710080

約数和(自身を除く): 191718440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 857, 1714, 3428, 4285, 4463, 6856, 8570, 8926, 17140, 17852, 22315, 34280, 35704, 44630, 89260, 178520, 3824791, 7649582, 15299164, 19123955, 30598328, 38247910, 76495820, 152991640]

約数ペア:

[(1, 152991640), (2, 76495820), (4, 38247910), (5, 30598328), (8, 19123955), (10, 15299164), (20, 7649582), (40, 3824791), (857, 178520), (1714, 89260), (3428, 44630), (4285, 35704), (4463, 34280), (6856, 22315), (8570, 17852), (8926, 17140)]