51819760

素因数分解:

$2^4\times 5^1\times {\mathrm{647747}}^1$

素因数の和:647760

約数の個数: 20

約数和(自身を含む): 120481128

約数和(自身を除く): 68661368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647747, 1295494, 2590988, 3238735, 5181976, 6477470, 10363952, 12954940, 25909880, 51819760]

約数ペア:

[(1, 51819760), (2, 25909880), (4, 12954940), (5, 10363952), (8, 6477470), (10, 5181976), (16, 3238735), (20, 2590988), (40, 1295494), (80, 647747)]