2205225

素因数分解:

$3^6\times 5^2\times {\mathrm{11}}^2$

素因数の和:50

約数の個数: 63

約数和(自身を含む): 4506439

約数和(自身を除く): 2301214

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 81, 99, 121, 135, 165, 225, 243, 275, 297, 363, 405, 495, 605, 675, 729, 825, 891, 1089, 1215, 1485, 1815, 2025, 2475, 2673, 3025, 3267, 3645, 4455, 5445, 6075, 7425, 8019, 9075, 9801, 13365, 16335, 18225, 22275, 27225, 29403, 40095, 49005, 66825, 81675, 88209, 147015, 200475, 245025, 441045, 735075, 2205225]

約数ペア:

[(1, 2205225), (3, 735075), (5, 441045), (9, 245025), (11, 200475), (15, 147015), (25, 88209), (27, 81675), (33, 66825), (45, 49005), (55, 40095), (75, 29403), (81, 27225), (99, 22275), (121, 18225), (135, 16335), (165, 13365), (225, 9801), (243, 9075), (275, 8019), (297, 7425), (363, 6075), (405, 5445), (495, 4455), (605, 3645), (675, 3267), (729, 3025), (825, 2673), (891, 2475), (1089, 2025), (1215, 1815)]