20347376

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1307}}^1$

素因数の和:1461

約数の個数: 40

約数和(自身を含む): 45413760

約数和(自身を除く): 25066384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1307, 1946, 2224, 2614, 3892, 5228, 7784, 9149, 10456, 15568, 18298, 20912, 36596, 73192, 146384, 181673, 363346, 726692, 1271711, 1453384, 2543422, 2906768, 5086844, 10173688, 20347376]

約数ペア:

[(1, 20347376), (2, 10173688), (4, 5086844), (7, 2906768), (8, 2543422), (14, 1453384), (16, 1271711), (28, 726692), (56, 363346), (112, 181673), (139, 146384), (278, 73192), (556, 36596), (973, 20912), (1112, 18298), (1307, 15568), (1946, 10456), (2224, 9149), (2614, 7784), (3892, 5228)]