123747320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{43573}}^1$

素因数の和:43655

約数の個数: 32

約数和(自身を含む): 282359520

約数和(自身を除く): 158612200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 43573, 87146, 174292, 217865, 348584, 435730, 871460, 1742920, 3093683, 6187366, 12374732, 15468415, 24749464, 30936830, 61873660, 123747320]

約数ペア:

[(1, 123747320), (2, 61873660), (4, 30936830), (5, 24749464), (8, 15468415), (10, 12374732), (20, 6187366), (40, 3093683), (71, 1742920), (142, 871460), (284, 435730), (355, 348584), (568, 217865), (710, 174292), (1420, 87146), (2840, 43573)]