81545520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48539}}^1$

素因数の和:48562

約数の個数: 80

約数和(自身を含む): 288910080

約数和(自身を除く): 207364560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 48539, 97078, 145617, 194156, 242695, 291234, 339773, 388312, 485390, 582468, 679546, 728085, 776624, 970780, 1019319, 1164936, 1359092, 1456170, 1698865, 1941560, 2038638, 2329872, 2718184, 2912340, 3397730, 3883120, 4077276, 5096595, 5436368, 5824680, 6795460, 8154552, 10193190, 11649360, 13590920, 16309104, 20386380, 27181840, 40772760, 81545520]

約数ペア:

[(1, 81545520), (2, 40772760), (3, 27181840), (4, 20386380), (5, 16309104), (6, 13590920), (7, 11649360), (8, 10193190), (10, 8154552), (12, 6795460), (14, 5824680), (15, 5436368), (16, 5096595), (20, 4077276), (21, 3883120), (24, 3397730), (28, 2912340), (30, 2718184), (35, 2329872), (40, 2038638), (42, 1941560), (48, 1698865), (56, 1456170), (60, 1359092), (70, 1164936), (80, 1019319), (84, 970780), (105, 776624), (112, 728085), (120, 679546), (140, 582468), (168, 485390), (210, 388312), (240, 339773), (280, 291234), (336, 242695), (420, 194156), (560, 145617), (840, 97078), (1680, 48539)]