80581865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 127733760

約数和(自身を除く): 47151895

約数列:

[1, 5, 7, 13, 29, 31, 35, 65, 91, 145, 155, 197, 203, 217, 377, 403, 455, 899, 985, 1015, 1085, 1379, 1885, 2015, 2561, 2639, 2821, 4495, 5713, 6107, 6293, 6895, 11687, 12805, 13195, 14105, 17927, 28565, 30535, 31465, 39991, 42749, 58435, 74269, 79391, 81809, 89635, 177103, 199955, 213745, 371345, 396955, 409045, 519883, 555737, 885515, 1239721, 2302339, 2599415, 2778685, 6198605, 11511695, 16116373, 80581865]

約数ペア:

[(1, 80581865), (5, 16116373), (7, 11511695), (13, 6198605), (29, 2778685), (31, 2599415), (35, 2302339), (65, 1239721), (91, 885515), (145, 555737), (155, 519883), (197, 409045), (203, 396955), (217, 371345), (377, 213745), (403, 199955), (455, 177103), (899, 89635), (985, 81809), (1015, 79391), (1085, 74269), (1379, 58435), (1885, 42749), (2015, 39991), (2561, 31465), (2639, 30535), (2821, 28565), (4495, 17927), (5713, 14105), (6107, 13195), (6293, 12805), (6895, 11687)]