81712260

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{21617}}^1$

素因数の和:21642

約数の個数: 96

約数和(自身を含む): 290545920

約数和(自身を除く): 208833660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 21617, 43234, 64851, 86468, 108085, 129702, 151319, 194553, 216170, 259404, 302638, 324255, 389106, 432340, 453957, 583659, 605276, 648510, 756595, 778212, 907914, 972765, 1167318, 1297020, 1361871, 1513190, 1815828, 1945530, 2269785, 2334636, 2723742, 2918295, 3026380, 3891060, 4085613, 4539570, 5447484, 5836590, 6809355, 8171226, 9079140, 11673180, 13618710, 16342452, 20428065, 27237420, 40856130, 81712260]

約数ペア:

[(1, 81712260), (2, 40856130), (3, 27237420), (4, 20428065), (5, 16342452), (6, 13618710), (7, 11673180), (9, 9079140), (10, 8171226), (12, 6809355), (14, 5836590), (15, 5447484), (18, 4539570), (20, 4085613), (21, 3891060), (27, 3026380), (28, 2918295), (30, 2723742), (35, 2334636), (36, 2269785), (42, 1945530), (45, 1815828), (54, 1513190), (60, 1361871), (63, 1297020), (70, 1167318), (84, 972765), (90, 907914), (105, 778212), (108, 756595), (126, 648510), (135, 605276), (140, 583659), (180, 453957), (189, 432340), (210, 389106), (252, 324255), (270, 302638), (315, 259404), (378, 216170), (420, 194553), (540, 151319), (630, 129702), (756, 108085), (945, 86468), (1260, 64851), (1890, 43234), (3780, 21617)]