8172040

素因数分解:

$2^3\times 5^1\times {\mathrm{204301}}^1$

素因数の和:204312

約数の個数: 16

約数和(自身を含む): 18387180

約数和(自身を除く): 10215140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 204301, 408602, 817204, 1021505, 1634408, 2043010, 4086020, 8172040]

約数ペア:

[(1, 8172040), (2, 4086020), (4, 2043010), (5, 1634408), (8, 1021505), (10, 817204), (20, 408602), (40, 204301)]