128752000

素因数分解:

$2^7\times 5^3\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:661

約数の個数: 128

約数和(自身を含む): 345290400

約数和(自身を除く): 216538400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 128, 130, 160, 200, 208, 250, 260, 320, 325, 400, 416, 500, 520, 619, 640, 650, 800, 832, 1000, 1040, 1238, 1300, 1600, 1625, 1664, 2000, 2080, 2476, 2600, 3095, 3200, 3250, 4000, 4160, 4952, 5200, 6190, 6500, 8000, 8047, 8320, 9904, 10400, 12380, 13000, 15475, 16000, 16094, 19808, 20800, 24760, 26000, 30950, 32188, 39616, 40235, 41600, 49520, 52000, 61900, 64376, 77375, 79232, 80470, 99040, 104000, 123800, 128752, 154750, 160940, 198080, 201175, 208000, 247600, 257504, 309500, 321880, 396160, 402350, 495200, 515008, 619000, 643760, 804700, 990400, 1005875, 1030016, 1238000, 1287520, 1609400, 1980800, 2011750, 2476000, 2575040, 3218800, 4023500, 4952000, 5150080, 6437600, 8047000, 9904000, 12875200, 16094000, 25750400, 32188000, 64376000, 128752000]

約数ペア:

[(1, 128752000), (2, 64376000), (4, 32188000), (5, 25750400), (8, 16094000), (10, 12875200), (13, 9904000), (16, 8047000), (20, 6437600), (25, 5150080), (26, 4952000), (32, 4023500), (40, 3218800), (50, 2575040), (52, 2476000), (64, 2011750), (65, 1980800), (80, 1609400), (100, 1287520), (104, 1238000), (125, 1030016), (128, 1005875), (130, 990400), (160, 804700), (200, 643760), (208, 619000), (250, 515008), (260, 495200), (320, 402350), (325, 396160), (400, 321880), (416, 309500), (500, 257504), (520, 247600), (619, 208000), (640, 201175), (650, 198080), (800, 160940), (832, 154750), (1000, 128752), (1040, 123800), (1238, 104000), (1300, 99040), (1600, 80470), (1625, 79232), (1664, 77375), (2000, 64376), (2080, 61900), (2476, 52000), (2600, 49520), (3095, 41600), (3200, 40235), (3250, 39616), (4000, 32188), (4160, 30950), (4952, 26000), (5200, 24760), (6190, 20800), (6500, 19808), (8000, 16094), (8047, 16000), (8320, 15475), (9904, 13000), (10400, 12380)]