2681140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1741}}^1$

素因数の和:1768

約数の個数: 48

約数和(自身を含む): 7023744

約数和(自身を除く): 4342604

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 1741, 3482, 6964, 8705, 12187, 17410, 19151, 24374, 34820, 38302, 48748, 60935, 76604, 95755, 121870, 134057, 191510, 243740, 268114, 383020, 536228, 670285, 1340570, 2681140]

約数ペア:

[(1, 2681140), (2, 1340570), (4, 670285), (5, 536228), (7, 383020), (10, 268114), (11, 243740), (14, 191510), (20, 134057), (22, 121870), (28, 95755), (35, 76604), (44, 60935), (55, 48748), (70, 38302), (77, 34820), (110, 24374), (140, 19151), (154, 17410), (220, 12187), (308, 8705), (385, 6964), (770, 3482), (1540, 1741)]