820268

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 1552320

約数和(自身を除く): 732052

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 251, 502, 817, 1004, 1634, 3268, 4769, 9538, 10793, 19076, 21586, 43172, 205067, 410134, 820268]

約数ペア:

[(1, 820268), (2, 410134), (4, 205067), (19, 43172), (38, 21586), (43, 19076), (76, 10793), (86, 9538), (172, 4769), (251, 3268), (502, 1634), (817, 1004)]