81257988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:481

約数の個数: 96

約数和(自身を含む): 228501504

約数和(自身を除く): 147243516

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 69, 84, 92, 137, 138, 161, 274, 276, 307, 322, 411, 483, 548, 614, 644, 822, 921, 959, 966, 1228, 1644, 1842, 1918, 1932, 2149, 2877, 3151, 3684, 3836, 4298, 5754, 6302, 6447, 7061, 8596, 9453, 11508, 12604, 12894, 14122, 18906, 21183, 22057, 25788, 28244, 37812, 42059, 42366, 44114, 49427, 66171, 84118, 84732, 88228, 98854, 126177, 132342, 148281, 168236, 197708, 252354, 264684, 294413, 296562, 504708, 588826, 593124, 883239, 967357, 1177652, 1766478, 1934714, 2902071, 3532956, 3869428, 5804142, 6771499, 11608284, 13542998, 20314497, 27085996, 40628994, 81257988]

約数ペア:

[(1, 81257988), (2, 40628994), (3, 27085996), (4, 20314497), (6, 13542998), (7, 11608284), (12, 6771499), (14, 5804142), (21, 3869428), (23, 3532956), (28, 2902071), (42, 1934714), (46, 1766478), (69, 1177652), (84, 967357), (92, 883239), (137, 593124), (138, 588826), (161, 504708), (274, 296562), (276, 294413), (307, 264684), (322, 252354), (411, 197708), (483, 168236), (548, 148281), (614, 132342), (644, 126177), (822, 98854), (921, 88228), (959, 84732), (966, 84118), (1228, 66171), (1644, 49427), (1842, 44114), (1918, 42366), (1932, 42059), (2149, 37812), (2877, 28244), (3151, 25788), (3684, 22057), (3836, 21183), (4298, 18906), (5754, 14122), (6302, 12894), (6447, 12604), (7061, 11508), (8596, 9453)]