131072000

素因数分解:

$2^{20}\times 5^3$

素因数の和:55

約数の個数: 84

約数和(自身を含む): 327155556

約数和(自身を除く): 196083556

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 640, 800, 1000, 1024, 1280, 1600, 2000, 2048, 2560, 3200, 4000, 4096, 5120, 6400, 8000, 8192, 10240, 12800, 16000, 16384, 20480, 25600, 32000, 32768, 40960, 51200, 64000, 65536, 81920, 102400, 128000, 131072, 163840, 204800, 256000, 262144, 327680, 409600, 512000, 524288, 655360, 819200, 1024000, 1048576, 1310720, 1638400, 2048000, 2621440, 3276800, 4096000, 5242880, 6553600, 8192000, 13107200, 16384000, 26214400, 32768000, 65536000, 131072000]

約数ペア:

[(1, 131072000), (2, 65536000), (4, 32768000), (5, 26214400), (8, 16384000), (10, 13107200), (16, 8192000), (20, 6553600), (25, 5242880), (32, 4096000), (40, 3276800), (50, 2621440), (64, 2048000), (80, 1638400), (100, 1310720), (125, 1048576), (128, 1024000), (160, 819200), (200, 655360), (250, 524288), (256, 512000), (320, 409600), (400, 327680), (500, 262144), (512, 256000), (640, 204800), (800, 163840), (1000, 131072), (1024, 128000), (1280, 102400), (1600, 81920), (2000, 65536), (2048, 64000), (2560, 51200), (3200, 40960), (4000, 32768), (4096, 32000), (5120, 25600), (6400, 20480), (8000, 16384), (8192, 16000), (10240, 12800)]