18837492040

素因数分解:

$2^3\times 5^1\times {\mathrm{859}}^1\times {\mathrm{548239}}^1$

素因数の和:549109

約数の個数: 32

約数和(自身を含む): 42433776000

約数和(自身を除く): 23596283960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 859, 1718, 3436, 4295, 6872, 8590, 17180, 34360, 548239, 1096478, 2192956, 2741195, 4385912, 5482390, 10964780, 21929560, 470937301, 941874602, 1883749204, 2354686505, 3767498408, 4709373010, 9418746020, 18837492040]

約数ペア:

[(1, 18837492040), (2, 9418746020), (4, 4709373010), (5, 3767498408), (8, 2354686505), (10, 1883749204), (20, 941874602), (40, 470937301), (859, 21929560), (1718, 10964780), (3436, 5482390), (4295, 4385912), (6872, 2741195), (8590, 2192956), (17180, 1096478), (34360, 548239)]