2002840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 5391360

約数和(自身を除く): 3388520

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, 311, 322, 460, 622, 644, 805, 920, 1244, 1288, 1555, 1610, 2177, 2488, 3110, 3220, 4354, 6220, 6440, 7153, 8708, 10885, 12440, 14306, 17416, 21770, 28612, 35765, 43540, 50071, 57224, 71530, 87080, 100142, 143060, 200284, 250355, 286120, 400568, 500710, 1001420, 2002840]

約数ペア:

[(1, 2002840), (2, 1001420), (4, 500710), (5, 400568), (7, 286120), (8, 250355), (10, 200284), (14, 143060), (20, 100142), (23, 87080), (28, 71530), (35, 57224), (40, 50071), (46, 43540), (56, 35765), (70, 28612), (92, 21770), (115, 17416), (140, 14306), (161, 12440), (184, 10885), (230, 8708), (280, 7153), (311, 6440), (322, 6220), (460, 4354), (622, 3220), (644, 3110), (805, 2488), (920, 2177), (1244, 1610), (1288, 1555)]