2141220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 6064128

約数和(自身を除く): 3922908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 281, 381, 508, 562, 635, 762, 843, 1124, 1270, 1405, 1524, 1686, 1905, 2540, 2810, 3372, 3810, 4215, 5620, 7620, 8430, 16860, 35687, 71374, 107061, 142748, 178435, 214122, 356870, 428244, 535305, 713740, 1070610, 2141220]

約数ペア:

[(1, 2141220), (2, 1070610), (3, 713740), (4, 535305), (5, 428244), (6, 356870), (10, 214122), (12, 178435), (15, 142748), (20, 107061), (30, 71374), (60, 35687), (127, 16860), (254, 8430), (281, 7620), (381, 5620), (508, 4215), (562, 3810), (635, 3372), (762, 2810), (843, 2540), (1124, 1905), (1270, 1686), (1405, 1524)]