639778878

素因数分解:

$2^1\times 3^3\times {\mathrm{499}}^1\times {\mathrm{23743}}^1$

素因数の和:24253

約数の個数: 32

約数和(自身を含む): 1424640000

約数和(自身を除く): 784861122

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 499, 998, 1497, 2994, 4491, 8982, 13473, 23743, 26946, 47486, 71229, 142458, 213687, 427374, 641061, 1282122, 11847757, 23695514, 35543271, 71086542, 106629813, 213259626, 319889439, 639778878]

約数ペア:

[(1, 639778878), (2, 319889439), (3, 213259626), (6, 106629813), (9, 71086542), (18, 35543271), (27, 23695514), (54, 11847757), (499, 1282122), (998, 641061), (1497, 427374), (2994, 213687), (4491, 142458), (8982, 71229), (13473, 47486), (23743, 26946)]