9981140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2953}}^1$

素因数の和:2988

約数の個数: 36

約数和(自身を含む): 22704444

約数和(自身を除く): 12723304

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 2953, 3380, 5906, 11812, 14765, 29530, 38389, 59060, 76778, 153556, 191945, 383890, 499057, 767780, 998114, 1996228, 2495285, 4990570, 9981140]

約数ペア:

[(1, 9981140), (2, 4990570), (4, 2495285), (5, 1996228), (10, 998114), (13, 767780), (20, 499057), (26, 383890), (52, 191945), (65, 153556), (130, 76778), (169, 59060), (260, 38389), (338, 29530), (676, 14765), (845, 11812), (1690, 5906), (2953, 3380)]