639979.0000000

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:281

約数の個数: 40

約数和(自身を含む): 10018800

約数和(自身を除く): 4101669

約数列:

[1, 3, 9, 11, 27, 29, 33, 81, 87, 99, 229, 261, 297, 319, 687, 783, 891, 957, 2061, 2349, 2519, 2871, 6183, 6641, 7557, 8613, 18549, 19923, 22671, 25839, 59769, 68013, 73051, 179307, 204039, 219153, 537921, 657459, 1972377, 5917131]

約数ペア:

[(1, 5917131), (3, 1972377), (9, 657459), (11, 537921), (27, 219153), (29, 204039), (33, 179307), (81, 73051), (87, 68013), (99, 59769), (229, 25839), (261, 22671), (297, 19923), (319, 18549), (687, 8613), (783, 7557), (891, 6641), (957, 6183), (2061, 2871), (2349, 2519)]