25628785

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 64

約数和(自身を含む): 41287680

約数和(自身を除く): 15658895

約数列:

[1, 5, 7, 13, 23, 31, 35, 65, 79, 91, 115, 155, 161, 217, 299, 395, 403, 455, 553, 713, 805, 1027, 1085, 1495, 1817, 2015, 2093, 2449, 2765, 2821, 3565, 4991, 5135, 7189, 9085, 9269, 10465, 12245, 12719, 14105, 17143, 23621, 24955, 31837, 35945, 46345, 56327, 63595, 64883, 85715, 118105, 159185, 165347, 222859, 281635, 324415, 394289, 732251, 826735, 1114295, 1971445, 3661255, 5125757, 25628785]

約数ペア:

[(1, 25628785), (5, 5125757), (7, 3661255), (13, 1971445), (23, 1114295), (31, 826735), (35, 732251), (65, 394289), (79, 324415), (91, 281635), (115, 222859), (155, 165347), (161, 159185), (217, 118105), (299, 85715), (395, 64883), (403, 63595), (455, 56327), (553, 46345), (713, 35945), (805, 31837), (1027, 24955), (1085, 23621), (1495, 17143), (1817, 14105), (2015, 12719), (2093, 12245), (2449, 10465), (2765, 9269), (2821, 9085), (3565, 7189), (4991, 5135)]