52428800

素因数分解:

$2^{21}\times 5^2$

素因数の和:52

約数の個数: 66

約数和(自身を含む): 130023393

約数和(自身を除く): 77594593

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1024, 1280, 1600, 2048, 2560, 3200, 4096, 5120, 6400, 8192, 10240, 12800, 16384, 20480, 25600, 32768, 40960, 51200, 65536, 81920, 102400, 131072, 163840, 204800, 262144, 327680, 409600, 524288, 655360, 819200, 1048576, 1310720, 1638400, 2097152, 2621440, 3276800, 5242880, 6553600, 10485760, 13107200, 26214400, 52428800]

約数ペア:

[(1, 52428800), (2, 26214400), (4, 13107200), (5, 10485760), (8, 6553600), (10, 5242880), (16, 3276800), (20, 2621440), (25, 2097152), (32, 1638400), (40, 1310720), (50, 1048576), (64, 819200), (80, 655360), (100, 524288), (128, 409600), (160, 327680), (200, 262144), (256, 204800), (320, 163840), (400, 131072), (512, 102400), (640, 81920), (800, 65536), (1024, 51200), (1280, 40960), (1600, 32768), (2048, 25600), (2560, 20480), (3200, 16384), (4096, 12800), (5120, 10240), (6400, 8192)]