99478160

素因数分解:

$2^4\times 5^1\times {\mathrm{1243477}}^1$

素因数の和:1243490

約数の個数: 20

約数和(自身を含む): 231286908

約数和(自身を除く): 131808748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1243477, 2486954, 4973908, 6217385, 9947816, 12434770, 19895632, 24869540, 49739080, 99478160]

約数ペア:

[(1, 99478160), (2, 49739080), (4, 24869540), (5, 19895632), (8, 12434770), (10, 9947816), (16, 6217385), (20, 4973908), (40, 2486954), (80, 1243477)]