2657220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 7562688

約数和(自身を除く): 4905468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 134, 201, 268, 335, 402, 661, 670, 804, 1005, 1322, 1340, 1983, 2010, 2644, 3305, 3966, 4020, 6610, 7932, 9915, 13220, 19830, 39660, 44287, 88574, 132861, 177148, 221435, 265722, 442870, 531444, 664305, 885740, 1328610, 2657220]

約数ペア:

[(1, 2657220), (2, 1328610), (3, 885740), (4, 664305), (5, 531444), (6, 442870), (10, 265722), (12, 221435), (15, 177148), (20, 132861), (30, 88574), (60, 44287), (67, 39660), (134, 19830), (201, 13220), (268, 9915), (335, 7932), (402, 6610), (661, 4020), (670, 3966), (804, 3305), (1005, 2644), (1322, 2010), (1340, 1983)]