155520140

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{17713}}^1$

素因数の和:18161

約数の個数: 24

約数和(自身を含む): 327354720

約数和(自身を除く): 171834580

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 17713, 35426, 70852, 88565, 177130, 354260, 7776007, 15552014, 31104028, 38880035, 77760070, 155520140]

約数ペア:

[(1, 155520140), (2, 77760070), (4, 38880035), (5, 31104028), (10, 15552014), (20, 7776007), (439, 354260), (878, 177130), (1756, 88565), (2195, 70852), (4390, 35426), (8780, 17713)]