81141225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1667}}^1$

素因数の和:1750

約数の個数: 48

約数和(自身を含む): 148919040

約数和(自身を除く): 67777815

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 59, 75, 165, 177, 275, 295, 649, 825, 885, 1475, 1667, 1947, 3245, 4425, 5001, 8335, 9735, 16225, 18337, 25005, 41675, 48675, 55011, 91685, 98353, 125025, 275055, 295059, 458425, 491765, 1081883, 1375275, 1475295, 2458825, 3245649, 5409415, 7376475, 16228245, 27047075, 81141225]

約数ペア:

[(1, 81141225), (3, 27047075), (5, 16228245), (11, 7376475), (15, 5409415), (25, 3245649), (33, 2458825), (55, 1475295), (59, 1375275), (75, 1081883), (165, 491765), (177, 458425), (275, 295059), (295, 275055), (649, 125025), (825, 98353), (885, 91685), (1475, 55011), (1667, 48675), (1947, 41675), (3245, 25005), (4425, 18337), (5001, 16225), (8335, 9735)]