16996880

素因数分解:

$2^4\times 5^1\times {\mathrm{212461}}^1$

素因数の和:212474

約数の個数: 20

約数和(自身を含む): 39517932

約数和(自身を除く): 22521052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 212461, 424922, 849844, 1062305, 1699688, 2124610, 3399376, 4249220, 8498440, 16996880]

約数ペア:

[(1, 16996880), (2, 8498440), (4, 4249220), (5, 3399376), (8, 2124610), (10, 1699688), (16, 1062305), (20, 849844), (40, 424922), (80, 212461)]