605745

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{641}}^1$

素因数の和:662

約数の個数: 32

約数和(自身を含む): 1232640

約数和(自身を除く): 626895

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 641, 945, 1923, 3205, 4487, 5769, 9615, 13461, 17307, 22435, 28845, 40383, 67305, 86535, 121149, 201915, 605745]

約数ペア:

[(1, 605745), (3, 201915), (5, 121149), (7, 86535), (9, 67305), (15, 40383), (21, 28845), (27, 22435), (35, 17307), (45, 13461), (63, 9615), (105, 5769), (135, 4487), (189, 3205), (315, 1923), (641, 945)]