28040505

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{27901}}^1$

素因数の和:27976

約数の個数: 16

約数和(自身を含む): 45536064

約数和(自身を除く): 17495559

約数列:

[1, 3, 5, 15, 67, 201, 335, 1005, 27901, 83703, 139505, 418515, 1869367, 5608101, 9346835, 28040505]

約数ペア:

[(1, 28040505), (3, 9346835), (5, 5608101), (15, 1869367), (67, 418515), (201, 139505), (335, 83703), (1005, 27901)]