81641280

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{12149}}^1$

素因数の和:12176

約数の個数: 112

約数和(自身を含む): 296265600

約数和(自身を除く): 214624320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3360, 6720, 12149, 24298, 36447, 48596, 60745, 72894, 85043, 97192, 121490, 145788, 170086, 182235, 194384, 242980, 255129, 291576, 340172, 364470, 388768, 425215, 485960, 510258, 583152, 680344, 728940, 777536, 850430, 971920, 1020516, 1166304, 1275645, 1360688, 1457880, 1700860, 1943840, 2041032, 2332608, 2551290, 2721376, 2915760, 3401720, 3887680, 4082064, 5102580, 5442752, 5831520, 6803440, 8164128, 10205160, 11663040, 13606880, 16328256, 20410320, 27213760, 40820640, 81641280]

約数ペア:

[(1, 81641280), (2, 40820640), (3, 27213760), (4, 20410320), (5, 16328256), (6, 13606880), (7, 11663040), (8, 10205160), (10, 8164128), (12, 6803440), (14, 5831520), (15, 5442752), (16, 5102580), (20, 4082064), (21, 3887680), (24, 3401720), (28, 2915760), (30, 2721376), (32, 2551290), (35, 2332608), (40, 2041032), (42, 1943840), (48, 1700860), (56, 1457880), (60, 1360688), (64, 1275645), (70, 1166304), (80, 1020516), (84, 971920), (96, 850430), (105, 777536), (112, 728940), (120, 680344), (140, 583152), (160, 510258), (168, 485960), (192, 425215), (210, 388768), (224, 364470), (240, 340172), (280, 291576), (320, 255129), (336, 242980), (420, 194384), (448, 182235), (480, 170086), (560, 145788), (672, 121490), (840, 97192), (960, 85043), (1120, 72894), (1344, 60745), (1680, 48596), (2240, 36447), (3360, 24298), (6720, 12149)]