201954520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{123143}}^1$

素因数の和:123195

約数の個数: 32

約数和(自身を含む): 465484320

約数和(自身を除く): 263529800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 123143, 246286, 492572, 615715, 985144, 1231430, 2462860, 4925720, 5048863, 10097726, 20195452, 25244315, 40390904, 50488630, 100977260, 201954520]

約数ペア:

[(1, 201954520), (2, 100977260), (4, 50488630), (5, 40390904), (8, 25244315), (10, 20195452), (20, 10097726), (40, 5048863), (41, 4925720), (82, 2462860), (164, 1231430), (205, 985144), (328, 615715), (410, 492572), (820, 246286), (1640, 123143)]