645354

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:84

約数の個数: 64

約数和(自身を含む): 1641600

約数和(自身を除く): 996246

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 27, 34, 37, 38, 51, 54, 57, 74, 102, 111, 114, 153, 171, 222, 306, 323, 333, 342, 459, 513, 629, 646, 666, 703, 918, 969, 999, 1026, 1258, 1406, 1887, 1938, 1998, 2109, 2907, 3774, 4218, 5661, 5814, 6327, 8721, 11322, 11951, 12654, 16983, 17442, 18981, 23902, 33966, 35853, 37962, 71706, 107559, 215118, 322677, 645354]

約数ペア:

[(1, 645354), (2, 322677), (3, 215118), (6, 107559), (9, 71706), (17, 37962), (18, 35853), (19, 33966), (27, 23902), (34, 18981), (37, 17442), (38, 16983), (51, 12654), (54, 11951), (57, 11322), (74, 8721), (102, 6327), (111, 5814), (114, 5661), (153, 4218), (171, 3774), (222, 2907), (306, 2109), (323, 1998), (333, 1938), (342, 1887), (459, 1406), (513, 1258), (629, 1026), (646, 999), (666, 969), (703, 918)]