205958440

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{40543}}^1$

素因数の和:40681

約数の個数: 32

約数和(自身を含む): 467066880

約数和(自身を除く): 261108440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 40543, 81086, 162172, 202715, 324344, 405430, 810860, 1621720, 5148961, 10297922, 20595844, 25744805, 41191688, 51489610, 102979220, 205958440]

約数ペア:

[(1, 205958440), (2, 102979220), (4, 51489610), (5, 41191688), (8, 25744805), (10, 20595844), (20, 10297922), (40, 5148961), (127, 1621720), (254, 810860), (508, 405430), (635, 324344), (1016, 202715), (1270, 162172), (2540, 81086), (5080, 40543)]