80023750

素因数分解:

$2^1\times 5^4\times {\mathrm{64019}}^1$

素因数の和:64041

約数の個数: 20

約数和(自身を含む): 149998860

約数和(自身を除く): 69975110

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 64019, 128038, 320095, 640190, 1600475, 3200950, 8002375, 16004750, 40011875, 80023750]

約数ペア:

[(1, 80023750), (2, 40011875), (5, 16004750), (10, 8002375), (25, 3200950), (50, 1600475), (125, 640190), (250, 320095), (625, 128038), (1250, 64019)]