68144620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{31259}}^1$

素因数の和:31377

約数の個数: 24

約数和(自身を含む): 144421200

約数和(自身を除く): 76276580

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 31259, 62518, 125036, 156295, 312590, 625180, 3407231, 6814462, 13628924, 17036155, 34072310, 68144620]

約数ペア:

[(1, 68144620), (2, 34072310), (4, 17036155), (5, 13628924), (10, 6814462), (20, 3407231), (109, 625180), (218, 312590), (436, 156295), (545, 125036), (1090, 62518), (2180, 31259)]