989665855

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1789}}^1$

素因数の和:1951

約数の個数: 32

約数和(自身を含む): 1270241280

約数和(自身を除く): 280575425

約数列:

[1, 5, 31, 43, 83, 155, 215, 415, 1333, 1789, 2573, 3569, 6665, 8945, 12865, 17845, 55459, 76927, 110639, 148487, 277295, 384635, 553195, 742435, 2384737, 4603097, 6384941, 11923685, 23015485, 31924705, 197933171, 989665855]

約数ペア:

[(1, 989665855), (5, 197933171), (31, 31924705), (43, 23015485), (83, 11923685), (155, 6384941), (215, 4603097), (415, 2384737), (1333, 742435), (1789, 553195), (2573, 384635), (3569, 277295), (6665, 148487), (8945, 110639), (12865, 76927), (17845, 55459)]