77980888940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{49354993}}^1$

素因数の和:49355081

約数の個数: 24

約数和(自身を含む): 165832779840

約数和(自身を除く): 87851890900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 49354993, 98709986, 197419972, 246774965, 493549930, 987099860, 3899044447, 7798088894, 15596177788, 19495222235, 38990444470, 77980888940]

約数ペア:

[(1, 77980888940), (2, 38990444470), (4, 19495222235), (5, 15596177788), (10, 7798088894), (20, 3899044447), (79, 987099860), (158, 493549930), (316, 246774965), (395, 197419972), (790, 98709986), (1580, 49354993)]