1784331388

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1\times {\mathrm{1999}}^1$

素因数の和:2530

約数の個数: 48

約数和(自身を含む): 3628800000

約数和(自身を除く): 1844468612

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 449, 497, 898, 994, 1796, 1988, 1999, 3143, 3998, 6286, 7996, 12572, 13993, 27986, 31879, 55972, 63758, 127516, 141929, 223153, 283858, 446306, 567716, 892612, 897551, 993503, 1795102, 1987006, 3590204, 3974012, 6282857, 12565714, 25131428, 63726121, 127452242, 254904484, 446082847, 892165694, 1784331388]

約数ペア:

[(1, 1784331388), (2, 892165694), (4, 446082847), (7, 254904484), (14, 127452242), (28, 63726121), (71, 25131428), (142, 12565714), (284, 6282857), (449, 3974012), (497, 3590204), (898, 1987006), (994, 1795102), (1796, 993503), (1988, 897551), (1999, 892612), (3143, 567716), (3998, 446306), (6286, 283858), (7996, 223153), (12572, 141929), (13993, 127516), (27986, 63758), (31879, 55972)]