77897985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 138354048

約数和(自身を除く): 60456063

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 167, 257, 363, 501, 605, 771, 835, 1285, 1815, 1837, 2505, 2827, 3855, 5511, 8481, 9185, 14135, 20207, 27555, 31097, 42405, 42919, 60621, 93291, 101035, 128757, 155485, 214595, 303105, 466455, 472109, 643785, 1416327, 2360545, 5193199, 7081635, 15579597, 25965995, 77897985]

約数ペア:

[(1, 77897985), (3, 25965995), (5, 15579597), (11, 7081635), (15, 5193199), (33, 2360545), (55, 1416327), (121, 643785), (165, 472109), (167, 466455), (257, 303105), (363, 214595), (501, 155485), (605, 128757), (771, 101035), (835, 93291), (1285, 60621), (1815, 42919), (1837, 42405), (2505, 31097), (2827, 27555), (3855, 20207), (5511, 14135), (8481, 9185)]