40240000

素因数分解:

$2^7\times 5^4\times {\mathrm{503}}^1$

素因数の和:537

約数の個数: 80

約数和(自身を含む): 100374120

約数和(自身を除く): 60134120

約数列:

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

約数ペア:

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