128031085

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 202567680

約数和(自身を除く): 74536595

約数列:

[1, 5, 7, 13, 29, 31, 35, 65, 91, 145, 155, 203, 217, 313, 377, 403, 455, 899, 1015, 1085, 1565, 1885, 2015, 2191, 2639, 2821, 4069, 4495, 6293, 9077, 9703, 10955, 11687, 13195, 14105, 20345, 28483, 31465, 45385, 48515, 58435, 63539, 67921, 81809, 118001, 126139, 142415, 281387, 317695, 339605, 409045, 590005, 630695, 826007, 882973, 1406935, 1969709, 3658031, 4130035, 4414865, 9848545, 18290155, 25606217, 128031085]

約数ペア:

[(1, 128031085), (5, 25606217), (7, 18290155), (13, 9848545), (29, 4414865), (31, 4130035), (35, 3658031), (65, 1969709), (91, 1406935), (145, 882973), (155, 826007), (203, 630695), (217, 590005), (313, 409045), (377, 339605), (403, 317695), (455, 281387), (899, 142415), (1015, 126139), (1085, 118001), (1565, 81809), (1885, 67921), (2015, 63539), (2191, 58435), (2639, 48515), (2821, 45385), (4069, 31465), (4495, 28483), (6293, 20345), (9077, 14105), (9703, 13195), (10955, 11687)]