28421925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1259}}^1$

素因数の和:1322

約数の個数: 48

約数和(自身を含む): 54996480

約数和(自身を除く): 26574555

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 75, 105, 129, 175, 215, 301, 525, 645, 903, 1075, 1259, 1505, 3225, 3777, 4515, 6295, 7525, 8813, 18885, 22575, 26439, 31475, 44065, 54137, 94425, 132195, 162411, 220325, 270685, 378959, 660975, 812055, 1136877, 1353425, 1894795, 4060275, 5684385, 9473975, 28421925]

約数ペア:

[(1, 28421925), (3, 9473975), (5, 5684385), (7, 4060275), (15, 1894795), (21, 1353425), (25, 1136877), (35, 812055), (43, 660975), (75, 378959), (105, 270685), (129, 220325), (175, 162411), (215, 132195), (301, 94425), (525, 54137), (645, 44065), (903, 31475), (1075, 26439), (1259, 22575), (1505, 18885), (3225, 8813), (3777, 7525), (4515, 6295)]