666225

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{47}}^1$

素因数の和:76

約数の個数: 60

約数和(自身を含む): 1440384

約数和(自身を除く): 774159

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 47, 63, 75, 81, 105, 135, 141, 175, 189, 225, 235, 315, 329, 405, 423, 525, 567, 675, 705, 945, 987, 1175, 1269, 1575, 1645, 2025, 2115, 2835, 2961, 3525, 3807, 4725, 4935, 6345, 8225, 8883, 10575, 14175, 14805, 19035, 24675, 26649, 31725, 44415, 74025, 95175, 133245, 222075, 666225]

約数ペア:

[(1, 666225), (3, 222075), (5, 133245), (7, 95175), (9, 74025), (15, 44415), (21, 31725), (25, 26649), (27, 24675), (35, 19035), (45, 14805), (47, 14175), (63, 10575), (75, 8883), (81, 8225), (105, 6345), (135, 4935), (141, 4725), (175, 3807), (189, 3525), (225, 2961), (235, 2835), (315, 2115), (329, 2025), (405, 1645), (423, 1575), (525, 1269), (567, 1175), (675, 987), (705, 945)]