21680040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{180667}}^1$

素因数の和:180681

約数の個数: 32

約数和(自身を含む): 65040480

約数和(自身を除く): 43360440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 180667, 361334, 542001, 722668, 903335, 1084002, 1445336, 1806670, 2168004, 2710005, 3613340, 4336008, 5420010, 7226680, 10840020, 21680040]

約数ペア:

[(1, 21680040), (2, 10840020), (3, 7226680), (4, 5420010), (5, 4336008), (6, 3613340), (8, 2710005), (10, 2168004), (12, 1806670), (15, 1445336), (20, 1084002), (24, 903335), (30, 722668), (40, 542001), (60, 361334), (120, 180667)]