28427155

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{761}}^1$

素因数の和:1038

約数の個数: 16

約数和(自身を含む): 35405568

約数和(自身を除く): 6978413

約数列:

[1, 5, 31, 155, 241, 761, 1205, 3805, 7471, 23591, 37355, 117955, 183401, 917005, 5685431, 28427155]

約数ペア:

[(1, 28427155), (5, 5685431), (31, 917005), (155, 183401), (241, 117955), (761, 37355), (1205, 23591), (3805, 7471)]