538852040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{220841}}^1$

素因数の和:220913

約数の個数: 32

約数和(自身を含む): 1232298360

約数和(自身を除く): 693446320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 220841, 441682, 883364, 1104205, 1766728, 2208410, 4416820, 8833640, 13471301, 26942602, 53885204, 67356505, 107770408, 134713010, 269426020, 538852040]

約数ペア:

[(1, 538852040), (2, 269426020), (4, 134713010), (5, 107770408), (8, 67356505), (10, 53885204), (20, 26942602), (40, 13471301), (61, 8833640), (122, 4416820), (244, 2208410), (305, 1766728), (488, 1104205), (610, 883364), (1220, 441682), (2440, 220841)]