158575280

素因数分解:

$2^4\times 5^1\times {\mathrm{1982191}}^1$

素因数の和:1982204

約数の個数: 20

約数和(自身を含む): 368687712

約数和(自身を除く): 210112432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1982191, 3964382, 7928764, 9910955, 15857528, 19821910, 31715056, 39643820, 79287640, 158575280]

約数ペア:

[(1, 158575280), (2, 79287640), (4, 39643820), (5, 31715056), (8, 19821910), (10, 15857528), (16, 9910955), (20, 7928764), (40, 3964382), (80, 1982191)]