2018561475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{139}}^2\times {\mathrm{199}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 3861062400

約数和(自身を除く): 1842500925

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 139, 175, 199, 417, 525, 597, 695, 973, 995, 1393, 2085, 2919, 2985, 3475, 4179, 4865, 4975, 6965, 10425, 14595, 14925, 19321, 20895, 24325, 27661, 34825, 57963, 72975, 82983, 96605, 104475, 135247, 138305, 193627, 289815, 405741, 414915, 483025, 580881, 676235, 691525, 968135, 1449075, 2028705, 2074575, 2904405, 3381175, 3844879, 4840675, 10143525, 11534637, 14522025, 19224395, 26914153, 57673185, 80742459, 96121975, 134570765, 288365925, 403712295, 672853825, 2018561475]

約数ペア:

[(1, 2018561475), (3, 672853825), (5, 403712295), (7, 288365925), (15, 134570765), (21, 96121975), (25, 80742459), (35, 57673185), (75, 26914153), (105, 19224395), (139, 14522025), (175, 11534637), (199, 10143525), (417, 4840675), (525, 3844879), (597, 3381175), (695, 2904405), (973, 2074575), (995, 2028705), (1393, 1449075), (2085, 968135), (2919, 691525), (2985, 676235), (3475, 580881), (4179, 483025), (4865, 414915), (4975, 405741), (6965, 289815), (10425, 193627), (14595, 138305), (14925, 135247), (19321, 104475), (20895, 96605), (24325, 82983), (27661, 72975), (34825, 57963)]