2015720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 5425920

約数和(自身を除く): 3410200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 313, 322, 460, 626, 644, 805, 920, 1252, 1288, 1565, 1610, 2191, 2504, 3130, 3220, 4382, 6260, 6440, 7199, 8764, 10955, 12520, 14398, 17528, 21910, 28796, 35995, 43820, 50393, 57592, 71990, 87640, 100786, 143980, 201572, 251965, 287960, 403144, 503930, 1007860, 2015720]

約数ペア:

[(1, 2015720), (2, 1007860), (4, 503930), (5, 403144), (7, 287960), (8, 251965), (10, 201572), (14, 143980), (20, 100786), (23, 87640), (28, 71990), (35, 57592), (40, 50393), (46, 43820), (56, 35995), (70, 28796), (92, 21910), (115, 17528), (140, 14398), (161, 12520), (184, 10955), (230, 8764), (280, 7199), (313, 6440), (322, 6260), (460, 4382), (626, 3220), (644, 3130), (805, 2504), (920, 2191), (1252, 1610), (1288, 1565)]