78428800

素因数分解:

$2^7\times 5^2\times {\mathrm{24509}}^1$

素因数の和:24533

約数の個数: 48

約数和(自身を含む): 193751550

約数和(自身を除く): 115322750

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 24509, 49018, 98036, 122545, 196072, 245090, 392144, 490180, 612725, 784288, 980360, 1225450, 1568576, 1960720, 2450900, 3137152, 3921440, 4901800, 7842880, 9803600, 15685760, 19607200, 39214400, 78428800]

約数ペア:

[(1, 78428800), (2, 39214400), (4, 19607200), (5, 15685760), (8, 9803600), (10, 7842880), (16, 4901800), (20, 3921440), (25, 3137152), (32, 2450900), (40, 1960720), (50, 1568576), (64, 1225450), (80, 980360), (100, 784288), (128, 612725), (160, 490180), (200, 392144), (320, 245090), (400, 196072), (640, 122545), (800, 98036), (1600, 49018), (3200, 24509)]