20383280

素因数分解:

$2^4\times 5^1\times {\mathrm{254791}}^1$

素因数の和:254804

約数の個数: 20

約数和(自身を含む): 47391312

約数和(自身を除く): 27008032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 254791, 509582, 1019164, 1273955, 2038328, 2547910, 4076656, 5095820, 10191640, 20383280]

約数ペア:

[(1, 20383280), (2, 10191640), (4, 5095820), (5, 4076656), (8, 2547910), (10, 2038328), (16, 1273955), (20, 1019164), (40, 509582), (80, 254791)]