155560280

素因数分解:

$2^3\times 5^1\times {\mathrm{3889007}}^1$

素因数の和:3889018

約数の個数: 16

約数和(自身を含む): 350010720

約数和(自身を除く): 194450440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3889007, 7778014, 15556028, 19445035, 31112056, 38890070, 77780140, 155560280]

約数ペア:

[(1, 155560280), (2, 77780140), (4, 38890070), (5, 31112056), (8, 19445035), (10, 15556028), (20, 7778014), (40, 3889007)]