80480000

素因数分解:

$2^8\times 5^4\times {\mathrm{503}}^1$

素因数の和:539

約数の個数: 90

約数和(自身を含む): 201141864

約数和(自身を除く): 120661864

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, 503, 625, 640, 800, 1000, 1006, 1250, 1280, 1600, 2000, 2012, 2500, 2515, 3200, 4000, 4024, 5000, 5030, 6400, 8000, 8048, 10000, 10060, 12575, 16000, 16096, 20000, 20120, 25150, 32000, 32192, 40000, 40240, 50300, 62875, 64384, 80000, 80480, 100600, 125750, 128768, 160000, 160960, 201200, 251500, 314375, 321920, 402400, 503000, 628750, 643840, 804800, 1006000, 1257500, 1609600, 2012000, 2515000, 3219200, 4024000, 5030000, 8048000, 10060000, 16096000, 20120000, 40240000, 80480000]

約数ペア:

[(1, 80480000), (2, 40240000), (4, 20120000), (5, 16096000), (8, 10060000), (10, 8048000), (16, 5030000), (20, 4024000), (25, 3219200), (32, 2515000), (40, 2012000), (50, 1609600), (64, 1257500), (80, 1006000), (100, 804800), (125, 643840), (128, 628750), (160, 503000), (200, 402400), (250, 321920), (256, 314375), (320, 251500), (400, 201200), (500, 160960), (503, 160000), (625, 128768), (640, 125750), (800, 100600), (1000, 80480), (1006, 80000), (1250, 64384), (1280, 62875), (1600, 50300), (2000, 40240), (2012, 40000), (2500, 32192), (2515, 32000), (3200, 25150), (4000, 20120), (4024, 20000), (5000, 16096), (5030, 16000), (6400, 12575), (8000, 10060), (8048, 10000)]