647510344

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{87691}}^1$

素因数の和:87781

約数の個数: 32

約数和(自身を含む): 1325903040

約数和(自身を除く): 678392696

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 3692, 7384, 87691, 175382, 350764, 701528, 1139983, 2279966, 4559932, 6226061, 9119864, 12452122, 24904244, 49808488, 80938793, 161877586, 323755172, 647510344]

約数ペア:

[(1, 647510344), (2, 323755172), (4, 161877586), (8, 80938793), (13, 49808488), (26, 24904244), (52, 12452122), (71, 9119864), (104, 6226061), (142, 4559932), (284, 2279966), (568, 1139983), (923, 701528), (1846, 350764), (3692, 175382), (7384, 87691)]