19687760

素因数分解:

$2^4\times 5^1\times {\mathrm{246097}}^1$

素因数の和:246110

約数の個数: 20

約数和(自身を含む): 45774228

約数和(自身を除く): 26086468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246097, 492194, 984388, 1230485, 1968776, 2460970, 3937552, 4921940, 9843880, 19687760]

約数ペア:

[(1, 19687760), (2, 9843880), (4, 4921940), (5, 3937552), (8, 2460970), (10, 1968776), (16, 1230485), (20, 984388), (40, 492194), (80, 246097)]