164019560

素因数分解:

$2^3\times 5^1\times {\mathrm{4100489}}^1$

素因数の和:4100500

約数の個数: 16

約数和(自身を含む): 369044100

約数和(自身を除く): 205024540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4100489, 8200978, 16401956, 20502445, 32803912, 41004890, 82009780, 164019560]

約数ペア:

[(1, 164019560), (2, 82009780), (4, 41004890), (5, 32803912), (8, 20502445), (10, 16401956), (20, 8200978), (40, 4100489)]