13805240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4861}}^1$

素因数の和:4943

約数の個数: 32

約数和(自身を含む): 31505760

約数和(自身を除く): 17700520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4861, 9722, 19444, 24305, 38888, 48610, 97220, 194440, 345131, 690262, 1380524, 1725655, 2761048, 3451310, 6902620, 13805240]

約数ペア:

[(1, 13805240), (2, 6902620), (4, 3451310), (5, 2761048), (8, 1725655), (10, 1380524), (20, 690262), (40, 345131), (71, 194440), (142, 97220), (284, 48610), (355, 38888), (568, 24305), (710, 19444), (1420, 9722), (2840, 4861)]