20201505

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{20101}}^1$

素因数の和:20176

約数の個数: 16

約数和(自身を含む): 32806464

約数和(自身を除く): 12604959

約数列:

[1, 3, 5, 15, 67, 201, 335, 1005, 20101, 60303, 100505, 301515, 1346767, 4040301, 6733835, 20201505]

約数ペア:

[(1, 20201505), (3, 6733835), (5, 4040301), (15, 1346767), (67, 301515), (201, 100505), (335, 60303), (1005, 20101)]