491968945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{643}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 649152000

約数和(自身を除く): 157183055

約数列:

[1, 5, 13, 65, 79, 149, 395, 643, 745, 1027, 1937, 3215, 5135, 8359, 9685, 11771, 41795, 50797, 58855, 95807, 153023, 253985, 479035, 660361, 765115, 1245491, 3301805, 6227455, 7568753, 37843765, 98393789, 491968945]

約数ペア:

[(1, 491968945), (5, 98393789), (13, 37843765), (65, 7568753), (79, 6227455), (149, 3301805), (395, 1245491), (643, 765115), (745, 660361), (1027, 479035), (1937, 253985), (3215, 153023), (5135, 95807), (8359, 58855), (9685, 50797), (11771, 41795)]