166152440

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{10463}}^1$

素因数の和:10871

約数の個数: 32

約数和(自身を含む): 374820480

約数和(自身を除く): 208668040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 7940, 10463, 15880, 20926, 41852, 52315, 83704, 104630, 209260, 418520, 4153811, 8307622, 16615244, 20769055, 33230488, 41538110, 83076220, 166152440]

約数ペア:

[(1, 166152440), (2, 83076220), (4, 41538110), (5, 33230488), (8, 20769055), (10, 16615244), (20, 8307622), (40, 4153811), (397, 418520), (794, 209260), (1588, 104630), (1985, 83704), (3176, 52315), (3970, 41852), (7940, 20926), (10463, 15880)]