28986685

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 16978115

約数列:

[1, 5, 7, 13, 19, 35, 49, 65, 91, 95, 133, 245, 247, 455, 479, 637, 665, 931, 1235, 1729, 2395, 3185, 3353, 4655, 6227, 8645, 9101, 12103, 16765, 23471, 31135, 43589, 45505, 60515, 63707, 117355, 118313, 217945, 305123, 318535, 445949, 591565, 828191, 1525615, 2229745, 4140955, 5797337, 28986685]

約数ペア:

[(1, 28986685), (5, 5797337), (7, 4140955), (13, 2229745), (19, 1525615), (35, 828191), (49, 591565), (65, 445949), (91, 318535), (95, 305123), (133, 217945), (245, 118313), (247, 117355), (455, 63707), (479, 60515), (637, 45505), (665, 43589), (931, 31135), (1235, 23471), (1729, 16765), (2395, 12103), (3185, 9101), (3353, 8645), (4655, 6227)]