68948620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{20399}}^1$

素因数の和:20434

約数の個数: 36

約数和(自身を含む): 156794400

約数和(自身を除く): 87845780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 20399, 40798, 81596, 101995, 203990, 265187, 407980, 530374, 1060748, 1325935, 2651870, 3447431, 5303740, 6894862, 13789724, 17237155, 34474310, 68948620]

約数ペア:

[(1, 68948620), (2, 34474310), (4, 17237155), (5, 13789724), (10, 6894862), (13, 5303740), (20, 3447431), (26, 2651870), (52, 1325935), (65, 1060748), (130, 530374), (169, 407980), (260, 265187), (338, 203990), (676, 101995), (845, 81596), (1690, 40798), (3380, 20399)]