1998675

素因数分解:

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

素因数の和:79

約数の個数: 72

約数和(自身を含む): 4333056

約数和(自身を除く): 2334381

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, 243, 315, 329, 405, 423, 525, 567, 675, 705, 945, 987, 1175, 1215, 1269, 1575, 1645, 1701, 2025, 2115, 2835, 2961, 3525, 3807, 4725, 4935, 6075, 6345, 8225, 8505, 8883, 10575, 11421, 14175, 14805, 19035, 24675, 26649, 31725, 42525, 44415, 57105, 74025, 79947, 95175, 133245, 222075, 285525, 399735, 666225, 1998675]

約数ペア:

[(1, 1998675), (3, 666225), (5, 399735), (7, 285525), (9, 222075), (15, 133245), (21, 95175), (25, 79947), (27, 74025), (35, 57105), (45, 44415), (47, 42525), (63, 31725), (75, 26649), (81, 24675), (105, 19035), (135, 14805), (141, 14175), (175, 11421), (189, 10575), (225, 8883), (235, 8505), (243, 8225), (315, 6345), (329, 6075), (405, 4935), (423, 4725), (525, 3807), (567, 3525), (675, 2961), (705, 2835), (945, 2115), (987, 2025), (1175, 1701), (1215, 1645), (1269, 1575)]