2178225

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{461}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 4583040

約数和(自身を除く): 2404815

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 461, 525, 675, 945, 1383, 1575, 2305, 3227, 4149, 4725, 6915, 9681, 11525, 12447, 16135, 20745, 29043, 34575, 48405, 62235, 80675, 87129, 103725, 145215, 242025, 311175, 435645, 726075, 2178225]

約数ペア:

[(1, 2178225), (3, 726075), (5, 435645), (7, 311175), (9, 242025), (15, 145215), (21, 103725), (25, 87129), (27, 80675), (35, 62235), (45, 48405), (63, 34575), (75, 29043), (105, 20745), (135, 16135), (175, 12447), (189, 11525), (225, 9681), (315, 6915), (461, 4725), (525, 4149), (675, 3227), (945, 2305), (1383, 1575)]