642838

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:136

約数の個数: 32

約数和(自身を含む): 1214784

約数和(自身を除く): 571946

約数列:

[1, 2, 7, 14, 17, 34, 37, 73, 74, 119, 146, 238, 259, 511, 518, 629, 1022, 1241, 1258, 2482, 2701, 4403, 5402, 8687, 8806, 17374, 18907, 37814, 45917, 91834, 321419, 642838]

約数ペア:

[(1, 642838), (2, 321419), (7, 91834), (14, 45917), (17, 37814), (34, 18907), (37, 17374), (73, 8806), (74, 8687), (119, 5402), (146, 4403), (238, 2701), (259, 2482), (511, 1258), (518, 1241), (629, 1022)]