84189475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{421}}^2$

素因数の和:871

約数の個数: 18

約数和(自身を含む): 110151060

約数和(自身を除く): 25961585

約数列:

[1, 5, 19, 25, 95, 421, 475, 2105, 7999, 10525, 39995, 177241, 199975, 886205, 3367579, 4431025, 16837895, 84189475]

約数ペア:

[(1, 84189475), (5, 16837895), (19, 4431025), (25, 3367579), (95, 886205), (421, 199975), (475, 177241), (2105, 39995), (7999, 10525)]