20328040

素因数分解:

$2^3\times 5^1\times {\mathrm{593}}^1\times {\mathrm{857}}^1$

素因数の和:1461

約数の個数: 32

約数和(自身を含む): 45868680

約数和(自身を除く): 25540640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 593, 857, 1186, 1714, 2372, 2965, 3428, 4285, 4744, 5930, 6856, 8570, 11860, 17140, 23720, 34280, 508201, 1016402, 2032804, 2541005, 4065608, 5082010, 10164020, 20328040]

約数ペア:

[(1, 20328040), (2, 10164020), (4, 5082010), (5, 4065608), (8, 2541005), (10, 2032804), (20, 1016402), (40, 508201), (593, 34280), (857, 23720), (1186, 17140), (1714, 11860), (2372, 8570), (2965, 6856), (3428, 5930), (4285, 4744)]