81424000

素因数分解:

$2^7\times 5^3\times 7^1\times {\mathrm{727}}^1$

素因数の和:763

約数の個数: 128

約数和(自身を含む): 231678720

約数和(自身を除く): 150254720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 128, 140, 160, 175, 200, 224, 250, 280, 320, 350, 400, 448, 500, 560, 640, 700, 727, 800, 875, 896, 1000, 1120, 1400, 1454, 1600, 1750, 2000, 2240, 2800, 2908, 3200, 3500, 3635, 4000, 4480, 5089, 5600, 5816, 7000, 7270, 8000, 10178, 11200, 11632, 14000, 14540, 16000, 18175, 20356, 22400, 23264, 25445, 28000, 29080, 36350, 40712, 46528, 50890, 56000, 58160, 72700, 81424, 90875, 93056, 101780, 112000, 116320, 127225, 145400, 162848, 181750, 203560, 232640, 254450, 290800, 325696, 363500, 407120, 465280, 508900, 581600, 636125, 651392, 727000, 814240, 1017800, 1163200, 1272250, 1454000, 1628480, 2035600, 2326400, 2544500, 2908000, 3256960, 4071200, 5089000, 5816000, 8142400, 10178000, 11632000, 16284800, 20356000, 40712000, 81424000]

約数ペア:

[(1, 81424000), (2, 40712000), (4, 20356000), (5, 16284800), (7, 11632000), (8, 10178000), (10, 8142400), (14, 5816000), (16, 5089000), (20, 4071200), (25, 3256960), (28, 2908000), (32, 2544500), (35, 2326400), (40, 2035600), (50, 1628480), (56, 1454000), (64, 1272250), (70, 1163200), (80, 1017800), (100, 814240), (112, 727000), (125, 651392), (128, 636125), (140, 581600), (160, 508900), (175, 465280), (200, 407120), (224, 363500), (250, 325696), (280, 290800), (320, 254450), (350, 232640), (400, 203560), (448, 181750), (500, 162848), (560, 145400), (640, 127225), (700, 116320), (727, 112000), (800, 101780), (875, 93056), (896, 90875), (1000, 81424), (1120, 72700), (1400, 58160), (1454, 56000), (1600, 50890), (1750, 46528), (2000, 40712), (2240, 36350), (2800, 29080), (2908, 28000), (3200, 25445), (3500, 23264), (3635, 22400), (4000, 20356), (4480, 18175), (5089, 16000), (5600, 14540), (5816, 14000), (7000, 11632), (7270, 11200), (8000, 10178)]