289778923

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{263}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 361304064

約数和(自身を除く): 71525141

約数列:

[1, 7, 17, 47, 119, 197, 263, 329, 799, 1379, 1841, 3349, 4471, 5593, 9259, 12361, 23443, 31297, 51811, 64813, 86527, 157403, 210137, 362677, 880787, 1101821, 1470959, 2435117, 6165509, 17045819, 41396989, 289778923]

約数ペア:

[(1, 289778923), (7, 41396989), (17, 17045819), (47, 6165509), (119, 2435117), (197, 1470959), (263, 1101821), (329, 880787), (799, 362677), (1379, 210137), (1841, 157403), (3349, 86527), (4471, 64813), (5593, 51811), (9259, 31297), (12361, 23443)]