251596208

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{257783}}^1$

素因数の和:257852

約数の個数: 20

約数和(自身を含む): 495460848

約数和(自身を除く): 243864640

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 257783, 515566, 1031132, 2062264, 4124528, 15724763, 31449526, 62899052, 125798104, 251596208]

約数ペア:

[(1, 251596208), (2, 125798104), (4, 62899052), (8, 31449526), (16, 15724763), (61, 4124528), (122, 2062264), (244, 1031132), (488, 515566), (976, 257783)]