51492040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18131}}^1$

素因数の和:18213

約数の個数: 32

約数和(自身を含む): 117495360

約数和(自身を除く): 66003320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 18131, 36262, 72524, 90655, 145048, 181310, 362620, 725240, 1287301, 2574602, 5149204, 6436505, 10298408, 12873010, 25746020, 51492040]

約数ペア:

[(1, 51492040), (2, 25746020), (4, 12873010), (5, 10298408), (8, 6436505), (10, 5149204), (20, 2574602), (40, 1287301), (71, 725240), (142, 362620), (284, 181310), (355, 145048), (568, 90655), (710, 72524), (1420, 36262), (2840, 18131)]