20139421810

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{621779}}^1$

素因数の和:621906

約数の個数: 32

約数和(自身を含む): 37605254400

約数和(自身を除く): 17465832590

約数列:

[1, 2, 5, 10, 41, 79, 82, 158, 205, 395, 410, 790, 3239, 6478, 16195, 32390, 621779, 1243558, 3108895, 6217790, 25492939, 49120541, 50985878, 98241082, 127464695, 245602705, 254929390, 491205410, 2013942181, 4027884362, 10069710905, 20139421810]

約数ペア:

[(1, 20139421810), (2, 10069710905), (5, 4027884362), (10, 2013942181), (41, 491205410), (79, 254929390), (82, 245602705), (158, 127464695), (205, 98241082), (395, 50985878), (410, 49120541), (790, 25492939), (3239, 6217790), (6478, 3108895), (16195, 1243558), (32390, 621779)]