1600928000

素因数分解:

$2^8\times 5^3\times 7^2\times {\mathrm{1021}}^1$

素因数の和:1066

約数の個数: 216

約数和(自身を含む): 4643775864

約数和(自身を除く): 3042847864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 125, 128, 140, 160, 175, 196, 200, 224, 245, 250, 256, 280, 320, 350, 392, 400, 448, 490, 500, 560, 640, 700, 784, 800, 875, 896, 980, 1000, 1021, 1120, 1225, 1280, 1400, 1568, 1600, 1750, 1792, 1960, 2000, 2042, 2240, 2450, 2800, 3136, 3200, 3500, 3920, 4000, 4084, 4480, 4900, 5105, 5600, 6125, 6272, 6400, 7000, 7147, 7840, 8000, 8168, 8960, 9800, 10210, 11200, 12250, 12544, 14000, 14294, 15680, 16000, 16336, 19600, 20420, 22400, 24500, 25525, 28000, 28588, 31360, 32000, 32672, 35735, 39200, 40840, 44800, 49000, 50029, 51050, 56000, 57176, 62720, 65344, 71470, 78400, 81680, 98000, 100058, 102100, 112000, 114352, 127625, 130688, 142940, 156800, 163360, 178675, 196000, 200116, 204200, 224000, 228704, 250145, 255250, 261376, 285880, 313600, 326720, 357350, 392000, 400232, 408400, 457408, 500290, 510500, 571760, 653440, 714700, 784000, 800464, 816800, 893375, 914816, 1000580, 1021000, 1143520, 1250725, 1306880, 1429400, 1568000, 1600928, 1633600, 1786750, 1829632, 2001160, 2042000, 2287040, 2501450, 2858800, 3201856, 3267200, 3573500, 4002320, 4084000, 4574080, 5002900, 5717600, 6253625, 6403712, 6534400, 7147000, 8004640, 8168000, 9148160, 10005800, 11435200, 12507250, 12807424, 14294000, 16009280, 16336000, 20011600, 22870400, 25014500, 28588000, 32018560, 32672000, 40023200, 45740800, 50029000, 57176000, 64037120, 80046400, 100058000, 114352000, 160092800, 200116000, 228704000, 320185600, 400232000, 800464000, 1600928000]

約数ペア:

[(1, 1600928000), (2, 800464000), (4, 400232000), (5, 320185600), (7, 228704000), (8, 200116000), (10, 160092800), (14, 114352000), (16, 100058000), (20, 80046400), (25, 64037120), (28, 57176000), (32, 50029000), (35, 45740800), (40, 40023200), (49, 32672000), (50, 32018560), (56, 28588000), (64, 25014500), (70, 22870400), (80, 20011600), (98, 16336000), (100, 16009280), (112, 14294000), (125, 12807424), (128, 12507250), (140, 11435200), (160, 10005800), (175, 9148160), (196, 8168000), (200, 8004640), (224, 7147000), (245, 6534400), (250, 6403712), (256, 6253625), (280, 5717600), (320, 5002900), (350, 4574080), (392, 4084000), (400, 4002320), (448, 3573500), (490, 3267200), (500, 3201856), (560, 2858800), (640, 2501450), (700, 2287040), (784, 2042000), (800, 2001160), (875, 1829632), (896, 1786750), (980, 1633600), (1000, 1600928), (1021, 1568000), (1120, 1429400), (1225, 1306880), (1280, 1250725), (1400, 1143520), (1568, 1021000), (1600, 1000580), (1750, 914816), (1792, 893375), (1960, 816800), (2000, 800464), (2042, 784000), (2240, 714700), (2450, 653440), (2800, 571760), (3136, 510500), (3200, 500290), (3500, 457408), (3920, 408400), (4000, 400232), (4084, 392000), (4480, 357350), (4900, 326720), (5105, 313600), (5600, 285880), (6125, 261376), (6272, 255250), (6400, 250145), (7000, 228704), (7147, 224000), (7840, 204200), (8000, 200116), (8168, 196000), (8960, 178675), (9800, 163360), (10210, 156800), (11200, 142940), (12250, 130688), (12544, 127625), (14000, 114352), (14294, 112000), (15680, 102100), (16000, 100058), (16336, 98000), (19600, 81680), (20420, 78400), (22400, 71470), (24500, 65344), (25525, 62720), (28000, 57176), (28588, 56000), (31360, 51050), (32000, 50029), (32672, 49000), (35735, 44800), (39200, 40840)]