8003120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1409}}^1$

素因数の和:1493

約数の個数: 40

約数和(自身を含む): 18882720

約数和(自身を除く): 10879600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1409, 1420, 2818, 2840, 5636, 5680, 7045, 11272, 14090, 22544, 28180, 56360, 100039, 112720, 200078, 400156, 500195, 800312, 1000390, 1600624, 2000780, 4001560, 8003120]

約数ペア:

[(1, 8003120), (2, 4001560), (4, 2000780), (5, 1600624), (8, 1000390), (10, 800312), (16, 500195), (20, 400156), (40, 200078), (71, 112720), (80, 100039), (142, 56360), (284, 28180), (355, 22544), (568, 14090), (710, 11272), (1136, 7045), (1409, 5680), (1420, 5636), (2818, 2840)]