851660

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 1811040

約数和(自身を除く): 959380

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 439, 485, 878, 970, 1756, 1940, 2195, 4390, 8780, 42583, 85166, 170332, 212915, 425830, 851660]

約数ペア:

[(1, 851660), (2, 425830), (4, 212915), (5, 170332), (10, 85166), (20, 42583), (97, 8780), (194, 4390), (388, 2195), (439, 1940), (485, 1756), (878, 970)]