28402975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{547}}^1$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 36965888

約数和(自身を除く): 8562913

約数列:

[1, 5, 25, 31, 67, 155, 335, 547, 775, 1675, 2077, 2735, 10385, 13675, 16957, 36649, 51925, 84785, 183245, 423925, 916225, 1136119, 5680595, 28402975]

約数ペア:

[(1, 28402975), (5, 5680595), (25, 1136119), (31, 916225), (67, 423925), (155, 183245), (335, 84785), (547, 51925), (775, 36649), (1675, 16957), (2077, 13675), (2735, 10385)]