80806400

素因数分解:

$2^9\times 5^2\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:194

約数の個数: 120

約数和(自身を含む): 205500240

約数和(自身を除く): 124693840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 59, 64, 80, 100, 107, 118, 128, 160, 200, 214, 236, 256, 295, 320, 400, 428, 472, 512, 535, 590, 640, 800, 856, 944, 1070, 1180, 1280, 1475, 1600, 1712, 1888, 2140, 2360, 2560, 2675, 2950, 3200, 3424, 3776, 4280, 4720, 5350, 5900, 6313, 6400, 6848, 7552, 8560, 9440, 10700, 11800, 12626, 12800, 13696, 15104, 17120, 18880, 21400, 23600, 25252, 27392, 30208, 31565, 34240, 37760, 42800, 47200, 50504, 54784, 63130, 68480, 75520, 85600, 94400, 101008, 126260, 136960, 151040, 157825, 171200, 188800, 202016, 252520, 273920, 315650, 342400, 377600, 404032, 505040, 631300, 684800, 755200, 808064, 1010080, 1262600, 1369600, 1616128, 2020160, 2525200, 3232256, 4040320, 5050400, 8080640, 10100800, 16161280, 20201600, 40403200, 80806400]

約数ペア:

[(1, 80806400), (2, 40403200), (4, 20201600), (5, 16161280), (8, 10100800), (10, 8080640), (16, 5050400), (20, 4040320), (25, 3232256), (32, 2525200), (40, 2020160), (50, 1616128), (59, 1369600), (64, 1262600), (80, 1010080), (100, 808064), (107, 755200), (118, 684800), (128, 631300), (160, 505040), (200, 404032), (214, 377600), (236, 342400), (256, 315650), (295, 273920), (320, 252520), (400, 202016), (428, 188800), (472, 171200), (512, 157825), (535, 151040), (590, 136960), (640, 126260), (800, 101008), (856, 94400), (944, 85600), (1070, 75520), (1180, 68480), (1280, 63130), (1475, 54784), (1600, 50504), (1712, 47200), (1888, 42800), (2140, 37760), (2360, 34240), (2560, 31565), (2675, 30208), (2950, 27392), (3200, 25252), (3424, 23600), (3776, 21400), (4280, 18880), (4720, 17120), (5350, 15104), (5900, 13696), (6313, 12800), (6400, 12626), (6848, 11800), (7552, 10700), (8560, 9440)]