20503075

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 26467056

約数和(自身を除く): 5963981

約数列:

[1, 5, 25, 41, 83, 205, 241, 415, 1025, 1205, 2075, 3403, 6025, 9881, 17015, 20003, 49405, 85075, 100015, 247025, 500075, 820123, 4100615, 20503075]

約数ペア:

[(1, 20503075), (5, 4100615), (25, 820123), (41, 500075), (83, 247025), (205, 100015), (241, 85075), (415, 49405), (1025, 20003), (1205, 17015), (2075, 9881), (3403, 6025)]