18057880

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1301}}^1$

素因数の和:1659

約数の個数: 32

約数和(自身を含む): 40778640

約数和(自身を除く): 22720760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1301, 1388, 1735, 2602, 2776, 3470, 5204, 6505, 6940, 10408, 13010, 13880, 26020, 52040, 451447, 902894, 1805788, 2257235, 3611576, 4514470, 9028940, 18057880]

約数ペア:

[(1, 18057880), (2, 9028940), (4, 4514470), (5, 3611576), (8, 2257235), (10, 1805788), (20, 902894), (40, 451447), (347, 52040), (694, 26020), (1301, 13880), (1388, 13010), (1735, 10408), (2602, 6940), (2776, 6505), (3470, 5204)]