399735

素因数分解:

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

素因数の和:74

約数の個数: 48

約数和(自身を含む): 838656

約数和(自身を除く): 438921

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 47, 63, 81, 105, 135, 141, 189, 235, 243, 315, 329, 405, 423, 567, 705, 945, 987, 1215, 1269, 1645, 1701, 2115, 2835, 2961, 3807, 4935, 6345, 8505, 8883, 11421, 14805, 19035, 26649, 44415, 57105, 79947, 133245, 399735]

約数ペア:

[(1, 399735), (3, 133245), (5, 79947), (7, 57105), (9, 44415), (15, 26649), (21, 19035), (27, 14805), (35, 11421), (45, 8883), (47, 8505), (63, 6345), (81, 4935), (105, 3807), (135, 2961), (141, 2835), (189, 2115), (235, 1701), (243, 1645), (315, 1269), (329, 1215), (405, 987), (423, 945), (567, 705)]