664986426

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{120077}}^1$

素因数の和:120166

約数の個数: 32

約数和(自身を含む): 1452463488

約数和(自身を除く): 787477062

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 5538, 120077, 240154, 360231, 720462, 1561001, 3122002, 4683003, 8525467, 9366006, 17050934, 25576401, 51152802, 110831071, 221662142, 332493213, 664986426]

約数ペア:

[(1, 664986426), (2, 332493213), (3, 221662142), (6, 110831071), (13, 51152802), (26, 25576401), (39, 17050934), (71, 9366006), (78, 8525467), (142, 4683003), (213, 3122002), (426, 1561001), (923, 720462), (1846, 360231), (2769, 240154), (5538, 120077)]