664672340

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{75703}}^1$

素因数の和:76151

約数の個数: 24

約数和(自身を含む): 1399009920

約数和(自身を除く): 734337580

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 75703, 151406, 302812, 378515, 757030, 1514060, 33233617, 66467234, 132934468, 166168085, 332336170, 664672340]

約数ペア:

[(1, 664672340), (2, 332336170), (4, 166168085), (5, 132934468), (10, 66467234), (20, 33233617), (439, 1514060), (878, 757030), (1756, 378515), (2195, 302812), (4390, 151406), (8780, 75703)]